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From t.@apache.org
Subject [60/82] [math] Update for next development iteration: commons-math4
Date Mon, 16 Feb 2015 22:40:30 GMT
http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/distribution/UniformIntegerDistributionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/distribution/UniformIntegerDistributionTest.java b/src/test/java/org/apache/commons/math4/distribution/UniformIntegerDistributionTest.java
index 63a6eed..3ae15dd 100644
--- a/src/test/java/org/apache/commons/math4/distribution/UniformIntegerDistributionTest.java
+++ b/src/test/java/org/apache/commons/math4/distribution/UniformIntegerDistributionTest.java
@@ -15,11 +15,13 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.distribution;
+package org.apache.commons.math4.distribution;
 
 import org.junit.Assert;
 import org.junit.Test;
-import org.apache.commons.math3.exception.NumberIsTooLargeException;
+import org.apache.commons.math4.distribution.IntegerDistribution;
+import org.apache.commons.math4.distribution.UniformIntegerDistribution;
+import org.apache.commons.math4.exception.NumberIsTooLargeException;
 
 /**
  * Test cases for UniformIntegerDistribution. See class javadoc for

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/distribution/UniformRealDistributionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/distribution/UniformRealDistributionTest.java b/src/test/java/org/apache/commons/math4/distribution/UniformRealDistributionTest.java
index 29f6a85..839ae08 100644
--- a/src/test/java/org/apache/commons/math4/distribution/UniformRealDistributionTest.java
+++ b/src/test/java/org/apache/commons/math4/distribution/UniformRealDistributionTest.java
@@ -15,9 +15,10 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.distribution;
+package org.apache.commons.math4.distribution;
 
-import org.apache.commons.math3.exception.NumberIsTooLargeException;
+import org.apache.commons.math4.distribution.UniformRealDistribution;
+import org.apache.commons.math4.exception.NumberIsTooLargeException;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/distribution/WeibullDistributionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/distribution/WeibullDistributionTest.java b/src/test/java/org/apache/commons/math4/distribution/WeibullDistributionTest.java
index af4fd6d..78a6113 100644
--- a/src/test/java/org/apache/commons/math4/distribution/WeibullDistributionTest.java
+++ b/src/test/java/org/apache/commons/math4/distribution/WeibullDistributionTest.java
@@ -15,11 +15,12 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.distribution;
+package org.apache.commons.math4.distribution;
 
-import org.apache.commons.math3.special.Gamma;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.distribution.WeibullDistribution;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.special.Gamma;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/distribution/ZipfDistributionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/distribution/ZipfDistributionTest.java b/src/test/java/org/apache/commons/math4/distribution/ZipfDistributionTest.java
index 06ec3c4..661eb33 100644
--- a/src/test/java/org/apache/commons/math4/distribution/ZipfDistributionTest.java
+++ b/src/test/java/org/apache/commons/math4/distribution/ZipfDistributionTest.java
@@ -15,11 +15,12 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.distribution;
+package org.apache.commons.math4.distribution;
 
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.distribution.IntegerDistribution;
+import org.apache.commons.math4.distribution.ZipfDistribution;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/distribution/fitting/MultivariateNormalMixtureExpectationMaximizationTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/distribution/fitting/MultivariateNormalMixtureExpectationMaximizationTest.java b/src/test/java/org/apache/commons/math4/distribution/fitting/MultivariateNormalMixtureExpectationMaximizationTest.java
index 75328fc..18291eb 100644
--- a/src/test/java/org/apache/commons/math4/distribution/fitting/MultivariateNormalMixtureExpectationMaximizationTest.java
+++ b/src/test/java/org/apache/commons/math4/distribution/fitting/MultivariateNormalMixtureExpectationMaximizationTest.java
@@ -14,21 +14,22 @@
  * License for the specific language governing permissions and limitations under
  * the License.
  */
-package org.apache.commons.math3.distribution.fitting;
+package org.apache.commons.math4.distribution.fitting;
 
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
-import org.apache.commons.math3.distribution.MixtureMultivariateNormalDistribution;
-import org.apache.commons.math3.distribution.MultivariateNormalDistribution;
-import org.apache.commons.math3.exception.ConvergenceException;
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.linear.Array2DRowRealMatrix;
-import org.apache.commons.math3.linear.RealMatrix;
-import org.apache.commons.math3.util.Pair;
+import org.apache.commons.math4.distribution.MixtureMultivariateNormalDistribution;
+import org.apache.commons.math4.distribution.MultivariateNormalDistribution;
+import org.apache.commons.math4.distribution.fitting.MultivariateNormalMixtureExpectationMaximization;
+import org.apache.commons.math4.exception.ConvergenceException;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.linear.Array2DRowRealMatrix;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.util.Pair;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/exception/DimensionMismatchExceptionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/exception/DimensionMismatchExceptionTest.java b/src/test/java/org/apache/commons/math4/exception/DimensionMismatchExceptionTest.java
index 3ac51e9..263e28d 100644
--- a/src/test/java/org/apache/commons/math4/exception/DimensionMismatchExceptionTest.java
+++ b/src/test/java/org/apache/commons/math4/exception/DimensionMismatchExceptionTest.java
@@ -14,8 +14,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.exception;
+package org.apache.commons.math4.exception;
 
+import org.apache.commons.math4.exception.DimensionMismatchException;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/exception/MaxCountExceededExceptionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/exception/MaxCountExceededExceptionTest.java b/src/test/java/org/apache/commons/math4/exception/MaxCountExceededExceptionTest.java
index ba0de1e..f0da371 100644
--- a/src/test/java/org/apache/commons/math4/exception/MaxCountExceededExceptionTest.java
+++ b/src/test/java/org/apache/commons/math4/exception/MaxCountExceededExceptionTest.java
@@ -14,8 +14,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.exception;
+package org.apache.commons.math4.exception;
 
+import org.apache.commons.math4.exception.MaxCountExceededException;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/exception/NonMonotonicSequenceExceptionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/exception/NonMonotonicSequenceExceptionTest.java b/src/test/java/org/apache/commons/math4/exception/NonMonotonicSequenceExceptionTest.java
index 42c5460..6c3b475 100644
--- a/src/test/java/org/apache/commons/math4/exception/NonMonotonicSequenceExceptionTest.java
+++ b/src/test/java/org/apache/commons/math4/exception/NonMonotonicSequenceExceptionTest.java
@@ -14,10 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.exception;
-
-import org.apache.commons.math3.util.MathArrays;
+package org.apache.commons.math4.exception;
 
+import org.apache.commons.math4.exception.NonMonotonicSequenceException;
+import org.apache.commons.math4.util.MathArrays;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/exception/NotPositiveExceptionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/exception/NotPositiveExceptionTest.java b/src/test/java/org/apache/commons/math4/exception/NotPositiveExceptionTest.java
index 6e4106c..37276cf 100644
--- a/src/test/java/org/apache/commons/math4/exception/NotPositiveExceptionTest.java
+++ b/src/test/java/org/apache/commons/math4/exception/NotPositiveExceptionTest.java
@@ -14,8 +14,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.exception;
+package org.apache.commons.math4.exception;
 
+import org.apache.commons.math4.exception.NotPositiveException;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/exception/NotStrictlyPositiveExceptionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/exception/NotStrictlyPositiveExceptionTest.java b/src/test/java/org/apache/commons/math4/exception/NotStrictlyPositiveExceptionTest.java
index e313b15..95748fc 100644
--- a/src/test/java/org/apache/commons/math4/exception/NotStrictlyPositiveExceptionTest.java
+++ b/src/test/java/org/apache/commons/math4/exception/NotStrictlyPositiveExceptionTest.java
@@ -14,8 +14,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.exception;
+package org.apache.commons.math4.exception;
 
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/exception/NumberIsTooLargeExceptionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/exception/NumberIsTooLargeExceptionTest.java b/src/test/java/org/apache/commons/math4/exception/NumberIsTooLargeExceptionTest.java
index 5ebe49d..fea0233 100644
--- a/src/test/java/org/apache/commons/math4/exception/NumberIsTooLargeExceptionTest.java
+++ b/src/test/java/org/apache/commons/math4/exception/NumberIsTooLargeExceptionTest.java
@@ -14,8 +14,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.exception;
+package org.apache.commons.math4.exception;
 
+import org.apache.commons.math4.exception.NumberIsTooLargeException;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/exception/NumberIsTooSmallExceptionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/exception/NumberIsTooSmallExceptionTest.java b/src/test/java/org/apache/commons/math4/exception/NumberIsTooSmallExceptionTest.java
index b70032f..95935c0 100644
--- a/src/test/java/org/apache/commons/math4/exception/NumberIsTooSmallExceptionTest.java
+++ b/src/test/java/org/apache/commons/math4/exception/NumberIsTooSmallExceptionTest.java
@@ -14,8 +14,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.exception;
+package org.apache.commons.math4.exception;
 
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/exception/OutOfRangeExceptionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/exception/OutOfRangeExceptionTest.java b/src/test/java/org/apache/commons/math4/exception/OutOfRangeExceptionTest.java
index deda254..a640443 100644
--- a/src/test/java/org/apache/commons/math4/exception/OutOfRangeExceptionTest.java
+++ b/src/test/java/org/apache/commons/math4/exception/OutOfRangeExceptionTest.java
@@ -14,8 +14,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.exception;
+package org.apache.commons.math4.exception;
 
+import org.apache.commons.math4.exception.OutOfRangeException;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/exception/TooManyEvaluationsExceptionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/exception/TooManyEvaluationsExceptionTest.java b/src/test/java/org/apache/commons/math4/exception/TooManyEvaluationsExceptionTest.java
index c21775e..0315f26 100644
--- a/src/test/java/org/apache/commons/math4/exception/TooManyEvaluationsExceptionTest.java
+++ b/src/test/java/org/apache/commons/math4/exception/TooManyEvaluationsExceptionTest.java
@@ -14,10 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.exception;
+package org.apache.commons.math4.exception;
 
 import java.text.MessageFormat;
 
+import org.apache.commons.math4.exception.TooManyEvaluationsException;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/exception/util/ArgUtilsTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/exception/util/ArgUtilsTest.java b/src/test/java/org/apache/commons/math4/exception/util/ArgUtilsTest.java
index d07708f..bb55ac2 100644
--- a/src/test/java/org/apache/commons/math4/exception/util/ArgUtilsTest.java
+++ b/src/test/java/org/apache/commons/math4/exception/util/ArgUtilsTest.java
@@ -14,11 +14,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.exception.util;
+package org.apache.commons.math4.exception.util;
 
 import java.util.List;
 import java.util.ArrayList;
 
+import org.apache.commons.math4.exception.util.ArgUtils;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/exception/util/ExceptionContextTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/exception/util/ExceptionContextTest.java b/src/test/java/org/apache/commons/math4/exception/util/ExceptionContextTest.java
index 91fe804..a9489f8 100644
--- a/src/test/java/org/apache/commons/math4/exception/util/ExceptionContextTest.java
+++ b/src/test/java/org/apache/commons/math4/exception/util/ExceptionContextTest.java
@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.exception.util;
+package org.apache.commons.math4.exception.util;
 
 import java.util.Locale;
 import java.util.Arrays;
@@ -24,6 +24,8 @@ import java.io.ObjectInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.ByteArrayInputStream;
 
+import org.apache.commons.math4.exception.util.ExceptionContext;
+import org.apache.commons.math4.exception.util.LocalizedFormats;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/exception/util/LocalizedFormatsTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/exception/util/LocalizedFormatsTest.java b/src/test/java/org/apache/commons/math4/exception/util/LocalizedFormatsTest.java
index 1a51f64..4b169a9 100644
--- a/src/test/java/org/apache/commons/math4/exception/util/LocalizedFormatsTest.java
+++ b/src/test/java/org/apache/commons/math4/exception/util/LocalizedFormatsTest.java
@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.exception.util;
+package org.apache.commons.math4.exception.util;
 
 
 import java.text.MessageFormat;
@@ -22,6 +22,7 @@ import java.util.Enumeration;
 import java.util.Locale;
 import java.util.ResourceBundle;
 
+import org.apache.commons.math4.exception.util.LocalizedFormats;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/filter/KalmanFilterTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/filter/KalmanFilterTest.java b/src/test/java/org/apache/commons/math4/filter/KalmanFilterTest.java
index f7a08c8..eeb2aa0 100644
--- a/src/test/java/org/apache/commons/math4/filter/KalmanFilterTest.java
+++ b/src/test/java/org/apache/commons/math4/filter/KalmanFilterTest.java
@@ -12,20 +12,25 @@
  * governing permissions and limitations under the License.
  */
 
-package org.apache.commons.math3.filter;
-
-import org.apache.commons.math3.distribution.NormalDistribution;
-import org.apache.commons.math3.linear.Array2DRowRealMatrix;
-import org.apache.commons.math3.linear.ArrayRealVector;
-import org.apache.commons.math3.linear.MatrixDimensionMismatchException;
-import org.apache.commons.math3.linear.MatrixUtils;
-import org.apache.commons.math3.linear.RealMatrix;
-import org.apache.commons.math3.linear.RealVector;
-import org.apache.commons.math3.random.JDKRandomGenerator;
-import org.apache.commons.math3.random.RandomGenerator;
-import org.apache.commons.math3.random.Well19937c;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.util.Precision;
+package org.apache.commons.math4.filter;
+
+import org.apache.commons.math4.distribution.NormalDistribution;
+import org.apache.commons.math4.filter.DefaultMeasurementModel;
+import org.apache.commons.math4.filter.DefaultProcessModel;
+import org.apache.commons.math4.filter.KalmanFilter;
+import org.apache.commons.math4.filter.MeasurementModel;
+import org.apache.commons.math4.filter.ProcessModel;
+import org.apache.commons.math4.linear.Array2DRowRealMatrix;
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.MatrixDimensionMismatchException;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.random.JDKRandomGenerator;
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.random.Well19937c;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.Precision;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/CurveFitterTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/CurveFitterTest.java b/src/test/java/org/apache/commons/math4/fitting/CurveFitterTest.java
index d08e942..18915e0 100644
--- a/src/test/java/org/apache/commons/math4/fitting/CurveFitterTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/CurveFitterTest.java
@@ -14,11 +14,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fitting;
+package org.apache.commons.math4.fitting;
 
-import org.apache.commons.math3.optim.nonlinear.vector.jacobian.LevenbergMarquardtOptimizer;
-import org.apache.commons.math3.analysis.ParametricUnivariateFunction;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.ParametricUnivariateFunction;
+import org.apache.commons.math4.fitting.CurveFitter;
+import org.apache.commons.math4.optim.nonlinear.vector.jacobian.LevenbergMarquardtOptimizer;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/GaussianCurveFitterTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/GaussianCurveFitterTest.java b/src/test/java/org/apache/commons/math4/fitting/GaussianCurveFitterTest.java
index 153274b..b14aceb 100644
--- a/src/test/java/org/apache/commons/math4/fitting/GaussianCurveFitterTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/GaussianCurveFitterTest.java
@@ -14,10 +14,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fitting;
+package org.apache.commons.math4.fitting;
 
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.exception.TooManyIterationsException;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.TooManyIterationsException;
+import org.apache.commons.math4.fitting.GaussianCurveFitter;
+import org.apache.commons.math4.fitting.WeightedObservedPoints;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/GaussianFitterTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/GaussianFitterTest.java b/src/test/java/org/apache/commons/math4/fitting/GaussianFitterTest.java
index ddec57d..a7ca9b2 100644
--- a/src/test/java/org/apache/commons/math4/fitting/GaussianFitterTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/GaussianFitterTest.java
@@ -14,10 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fitting;
+package org.apache.commons.math4.fitting;
 
-import org.apache.commons.math3.optim.nonlinear.vector.jacobian.LevenbergMarquardtOptimizer;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.fitting.GaussianFitter;
+import org.apache.commons.math4.optim.nonlinear.vector.jacobian.LevenbergMarquardtOptimizer;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/HarmonicCurveFitterTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/HarmonicCurveFitterTest.java b/src/test/java/org/apache/commons/math4/fitting/HarmonicCurveFitterTest.java
index 9f6a15c..d85588e 100644
--- a/src/test/java/org/apache/commons/math4/fitting/HarmonicCurveFitterTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/HarmonicCurveFitterTest.java
@@ -14,17 +14,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fitting;
+package org.apache.commons.math4.fitting;
 
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Random;
 
-import org.apache.commons.math3.analysis.function.HarmonicOscillator;
-import org.apache.commons.math3.exception.MathIllegalStateException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.util.MathUtils;
+import org.apache.commons.math4.analysis.function.HarmonicOscillator;
+import org.apache.commons.math4.exception.MathIllegalStateException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.fitting.HarmonicCurveFitter;
+import org.apache.commons.math4.fitting.WeightedObservedPoint;
+import org.apache.commons.math4.fitting.WeightedObservedPoints;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.MathUtils;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/HarmonicFitterTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/HarmonicFitterTest.java b/src/test/java/org/apache/commons/math4/fitting/HarmonicFitterTest.java
index 8a6dcea..328d060 100644
--- a/src/test/java/org/apache/commons/math4/fitting/HarmonicFitterTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/HarmonicFitterTest.java
@@ -14,16 +14,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fitting;
+package org.apache.commons.math4.fitting;
 
 import java.util.Random;
 
-import org.apache.commons.math3.optim.nonlinear.vector.jacobian.LevenbergMarquardtOptimizer;
-import org.apache.commons.math3.analysis.function.HarmonicOscillator;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.MathIllegalStateException;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.util.MathUtils;
+import org.apache.commons.math4.analysis.function.HarmonicOscillator;
+import org.apache.commons.math4.exception.MathIllegalStateException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.fitting.HarmonicFitter;
+import org.apache.commons.math4.fitting.WeightedObservedPoint;
+import org.apache.commons.math4.optim.nonlinear.vector.jacobian.LevenbergMarquardtOptimizer;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.MathUtils;
 import org.junit.Test;
 import org.junit.Assert;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/PolynomialCurveFitterTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/PolynomialCurveFitterTest.java b/src/test/java/org/apache/commons/math4/fitting/PolynomialCurveFitterTest.java
index 6b8dfa2..02c5810 100644
--- a/src/test/java/org/apache/commons/math4/fitting/PolynomialCurveFitterTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/PolynomialCurveFitterTest.java
@@ -14,16 +14,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fitting;
+package org.apache.commons.math4.fitting;
 
 import java.util.Random;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.analysis.polynomials.PolynomialFunction;
-import org.apache.commons.math3.distribution.RealDistribution;
-import org.apache.commons.math3.distribution.UniformRealDistribution;
-import org.apache.commons.math3.exception.ConvergenceException;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.analysis.polynomials.PolynomialFunction;
+import org.apache.commons.math4.distribution.RealDistribution;
+import org.apache.commons.math4.distribution.UniformRealDistribution;
+import org.apache.commons.math4.exception.ConvergenceException;
+import org.apache.commons.math4.fitting.PolynomialCurveFitter;
+import org.apache.commons.math4.fitting.WeightedObservedPoints;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/PolynomialFitterTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/PolynomialFitterTest.java b/src/test/java/org/apache/commons/math4/fitting/PolynomialFitterTest.java
index a053157..ff543ab 100644
--- a/src/test/java/org/apache/commons/math4/fitting/PolynomialFitterTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/PolynomialFitterTest.java
@@ -14,22 +14,24 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fitting;
+package org.apache.commons.math4.fitting;
 
 import java.util.Random;
 
-import org.apache.commons.math3.analysis.polynomials.PolynomialFunction;
-import org.apache.commons.math3.analysis.polynomials.PolynomialFunction.Parametric;
-import org.apache.commons.math3.exception.ConvergenceException;
-import org.apache.commons.math3.exception.TooManyEvaluationsException;
-import org.apache.commons.math3.optim.nonlinear.vector.MultivariateVectorOptimizer;
-import org.apache.commons.math3.optim.nonlinear.vector.jacobian.LevenbergMarquardtOptimizer;
-import org.apache.commons.math3.optim.nonlinear.vector.jacobian.GaussNewtonOptimizer;
-import org.apache.commons.math3.optim.SimpleVectorValueChecker;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.distribution.RealDistribution;
-import org.apache.commons.math3.distribution.UniformRealDistribution;
-import org.apache.commons.math3.TestUtils;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.analysis.polynomials.PolynomialFunction;
+import org.apache.commons.math4.analysis.polynomials.PolynomialFunction.Parametric;
+import org.apache.commons.math4.distribution.RealDistribution;
+import org.apache.commons.math4.distribution.UniformRealDistribution;
+import org.apache.commons.math4.exception.ConvergenceException;
+import org.apache.commons.math4.exception.TooManyEvaluationsException;
+import org.apache.commons.math4.fitting.CurveFitter;
+import org.apache.commons.math4.fitting.PolynomialFitter;
+import org.apache.commons.math4.optim.SimpleVectorValueChecker;
+import org.apache.commons.math4.optim.nonlinear.vector.MultivariateVectorOptimizer;
+import org.apache.commons.math4.optim.nonlinear.vector.jacobian.GaussNewtonOptimizer;
+import org.apache.commons.math4.optim.nonlinear.vector.jacobian.LevenbergMarquardtOptimizer;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Test;
 import org.junit.Assert;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/SimpleCurveFitterTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/SimpleCurveFitterTest.java b/src/test/java/org/apache/commons/math4/fitting/SimpleCurveFitterTest.java
index d411d4a..bd2b594 100644
--- a/src/test/java/org/apache/commons/math4/fitting/SimpleCurveFitterTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/SimpleCurveFitterTest.java
@@ -14,17 +14,19 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fitting;
+package org.apache.commons.math4.fitting;
 
 import java.util.Random;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.analysis.ParametricUnivariateFunction;
-import org.apache.commons.math3.analysis.polynomials.PolynomialFunction;
-import org.apache.commons.math3.distribution.RealDistribution;
-import org.apache.commons.math3.distribution.UniformRealDistribution;
-import org.apache.commons.math3.exception.ConvergenceException;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.analysis.ParametricUnivariateFunction;
+import org.apache.commons.math4.analysis.polynomials.PolynomialFunction;
+import org.apache.commons.math4.distribution.RealDistribution;
+import org.apache.commons.math4.distribution.UniformRealDistribution;
+import org.apache.commons.math4.exception.ConvergenceException;
+import org.apache.commons.math4.fitting.SimpleCurveFitter;
+import org.apache.commons.math4.fitting.WeightedObservedPoints;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/WeightedObservedPointsTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/WeightedObservedPointsTest.java b/src/test/java/org/apache/commons/math4/fitting/WeightedObservedPointsTest.java
index 6b9e311..773e883 100644
--- a/src/test/java/org/apache/commons/math4/fitting/WeightedObservedPointsTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/WeightedObservedPointsTest.java
@@ -14,12 +14,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fitting;
+package org.apache.commons.math4.fitting;
 
 import java.util.List;
+
 import org.junit.Assert;
 import org.junit.Test;
-import org.apache.commons.math3.util.Precision;
+import org.apache.commons.math4.fitting.WeightedObservedPoint;
+import org.apache.commons.math4.fitting.WeightedObservedPoints;
+import org.apache.commons.math4.util.Precision;
 
 /**
  * Tests {@link WeightedObservedPoints}.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/AbstractLeastSquaresOptimizerAbstractTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/AbstractLeastSquaresOptimizerAbstractTest.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/AbstractLeastSquaresOptimizerAbstractTest.java
index bb9c9ac..6880bbe 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/AbstractLeastSquaresOptimizerAbstractTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/AbstractLeastSquaresOptimizerAbstractTest.java
@@ -14,25 +14,29 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fitting.leastsquares;
-
-import org.apache.commons.math3.analysis.MultivariateMatrixFunction;
-import org.apache.commons.math3.analysis.MultivariateVectorFunction;
-import org.apache.commons.math3.exception.ConvergenceException;
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.fitting.leastsquares.LeastSquaresOptimizer.Optimum;
-import org.apache.commons.math3.fitting.leastsquares.LeastSquaresProblem.Evaluation;
-import org.apache.commons.math3.geometry.euclidean.twod.Vector2D;
-import org.apache.commons.math3.linear.Array2DRowRealMatrix;
-import org.apache.commons.math3.linear.ArrayRealVector;
-import org.apache.commons.math3.linear.BlockRealMatrix;
-import org.apache.commons.math3.linear.DiagonalMatrix;
-import org.apache.commons.math3.linear.RealMatrix;
-import org.apache.commons.math3.linear.RealVector;
-import org.apache.commons.math3.optim.ConvergenceChecker;
-import org.apache.commons.math3.optim.SimpleVectorValueChecker;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.util.Pair;
+package org.apache.commons.math4.fitting.leastsquares;
+
+import org.apache.commons.math4.analysis.MultivariateMatrixFunction;
+import org.apache.commons.math4.analysis.MultivariateVectorFunction;
+import org.apache.commons.math4.exception.ConvergenceException;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresBuilder;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresOptimizer;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresProblem;
+import org.apache.commons.math4.fitting.leastsquares.MultivariateJacobianFunction;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresOptimizer.Optimum;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresProblem.Evaluation;
+import org.apache.commons.math4.geometry.euclidean.twod.Vector2D;
+import org.apache.commons.math4.linear.Array2DRowRealMatrix;
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.BlockRealMatrix;
+import org.apache.commons.math4.linear.DiagonalMatrix;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.optim.ConvergenceChecker;
+import org.apache.commons.math4.optim.SimpleVectorValueChecker;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.Pair;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/CircleProblem.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/CircleProblem.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/CircleProblem.java
index ed637d4..63c817e 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/CircleProblem.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/CircleProblem.java
@@ -14,13 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fitting.leastsquares;
+package org.apache.commons.math4.fitting.leastsquares;
 
 import java.util.ArrayList;
-import org.apache.commons.math3.analysis.MultivariateVectorFunction;
-import org.apache.commons.math3.analysis.MultivariateMatrixFunction;
-import org.apache.commons.math3.util.MathUtils;
-import org.apache.commons.math3.util.FastMath;
+
+import org.apache.commons.math4.analysis.MultivariateMatrixFunction;
+import org.apache.commons.math4.analysis.MultivariateVectorFunction;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.MathUtils;
 
 /**
  * Class that models a circle.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/CircleVectorial.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/CircleVectorial.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/CircleVectorial.java
index 968bea5..3ba837b 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/CircleVectorial.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/CircleVectorial.java
@@ -14,12 +14,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fitting.leastsquares;
+package org.apache.commons.math4.fitting.leastsquares;
 
 import java.util.ArrayList;
-import org.apache.commons.math3.analysis.MultivariateVectorFunction;
-import org.apache.commons.math3.analysis.MultivariateMatrixFunction;
-import org.apache.commons.math3.geometry.euclidean.twod.Vector2D;
+
+import org.apache.commons.math4.analysis.MultivariateMatrixFunction;
+import org.apache.commons.math4.analysis.MultivariateVectorFunction;
+import org.apache.commons.math4.geometry.euclidean.twod.Vector2D;
 
 /**
  * Class used in the tests.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/EvaluationRmsCheckerTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/EvaluationRmsCheckerTest.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/EvaluationRmsCheckerTest.java
index 6f5e3df..d98dcaa 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/EvaluationRmsCheckerTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/EvaluationRmsCheckerTest.java
@@ -14,12 +14,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fitting.leastsquares;
+package org.apache.commons.math4.fitting.leastsquares;
 
-import org.apache.commons.math3.fitting.leastsquares.LeastSquaresProblem.Evaluation;
-import org.apache.commons.math3.linear.RealMatrix;
-import org.apache.commons.math3.linear.RealVector;
-import org.apache.commons.math3.optim.ConvergenceChecker;
+import org.apache.commons.math4.fitting.leastsquares.EvaluationRmsChecker;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresProblem.Evaluation;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.optim.ConvergenceChecker;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/EvaluationTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/EvaluationTest.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/EvaluationTest.java
index a53b3f7..b34dcaf 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/EvaluationTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/EvaluationTest.java
@@ -11,22 +11,27 @@
  * KIND, either express or implied. See the License for the specific language
  * governing permissions and limitations under the License.
  */
-package org.apache.commons.math3.fitting.leastsquares;
-
-import org.apache.commons.math3.exception.MathIllegalStateException;
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.analysis.MultivariateMatrixFunction;
-import org.apache.commons.math3.analysis.MultivariateVectorFunction;
-import org.apache.commons.math3.fitting.leastsquares.LeastSquaresProblem.Evaluation;
-import org.apache.commons.math3.linear.ArrayRealVector;
-import org.apache.commons.math3.linear.DiagonalMatrix;
-import org.apache.commons.math3.linear.MatrixUtils;
-import org.apache.commons.math3.linear.RealMatrix;
-import org.apache.commons.math3.linear.RealVector;
-import org.apache.commons.math3.linear.SingularMatrixException;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.util.Pair;
-import org.apache.commons.math3.util.Precision;
+package org.apache.commons.math4.fitting.leastsquares;
+
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.analysis.MultivariateMatrixFunction;
+import org.apache.commons.math4.analysis.MultivariateVectorFunction;
+import org.apache.commons.math4.exception.MathIllegalStateException;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresBuilder;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresFactory;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresProblem;
+import org.apache.commons.math4.fitting.leastsquares.MultivariateJacobianFunction;
+import org.apache.commons.math4.fitting.leastsquares.ValueAndJacobianFunction;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresProblem.Evaluation;
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.DiagonalMatrix;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.linear.SingularMatrixException;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.Pair;
+import org.apache.commons.math4.util.Precision;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/EvaluationTestValidation.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/EvaluationTestValidation.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/EvaluationTestValidation.java
index eaa7b8d..6642854 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/EvaluationTestValidation.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/EvaluationTestValidation.java
@@ -11,14 +11,16 @@
  * KIND, either express or implied. See the License for the specific language
  * governing permissions and limitations under the License.
  */
-package org.apache.commons.math3.fitting.leastsquares;
-
-import org.apache.commons.math3.linear.ArrayRealVector;
-import org.apache.commons.math3.linear.DiagonalMatrix;
-import org.apache.commons.math3.linear.RealVector;
-import org.apache.commons.math3.stat.descriptive.StatisticalSummary;
-import org.apache.commons.math3.stat.descriptive.SummaryStatistics;
-import org.apache.commons.math3.util.FastMath;
+package org.apache.commons.math4.fitting.leastsquares;
+
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresBuilder;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresProblem;
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.DiagonalMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.stat.descriptive.StatisticalSummary;
+import org.apache.commons.math4.stat.descriptive.SummaryStatistics;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 
@@ -30,7 +32,7 @@ import java.util.List;
  * This class demonstrates the main functionality of the
  * {@link LeastSquaresProblem.Evaluation}, common to the
  * optimizer implementations in package
- * {@link org.apache.commons.math3.fitting.leastsquares}.
+ * {@link org.apache.commons.math4.fitting.leastsquares}.
  * <br/>
  * Not enabled by default, as the class name does not end with "Test".
  * <br/>

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithCholeskyTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithCholeskyTest.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithCholeskyTest.java
index beb59b2..c6d26d4 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithCholeskyTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithCholeskyTest.java
@@ -15,12 +15,15 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.fitting.leastsquares;
+package org.apache.commons.math4.fitting.leastsquares;
 
-import org.apache.commons.math3.exception.ConvergenceException;
-import org.apache.commons.math3.exception.TooManyEvaluationsException;
-import org.apache.commons.math3.fitting.leastsquares.GaussNewtonOptimizer.Decomposition;
-import org.apache.commons.math3.optim.SimpleVectorValueChecker;
+import org.apache.commons.math4.exception.ConvergenceException;
+import org.apache.commons.math4.exception.TooManyEvaluationsException;
+import org.apache.commons.math4.fitting.leastsquares.GaussNewtonOptimizer;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresOptimizer;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresProblem;
+import org.apache.commons.math4.fitting.leastsquares.GaussNewtonOptimizer.Decomposition;
+import org.apache.commons.math4.optim.SimpleVectorValueChecker;
 import org.junit.Test;
 
 import java.io.IOException;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithLUTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithLUTest.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithLUTest.java
index b3b57cb..f7a5ef9 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithLUTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithLUTest.java
@@ -15,12 +15,15 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.fitting.leastsquares;
+package org.apache.commons.math4.fitting.leastsquares;
 
-import org.apache.commons.math3.exception.ConvergenceException;
-import org.apache.commons.math3.exception.TooManyEvaluationsException;
-import org.apache.commons.math3.fitting.leastsquares.GaussNewtonOptimizer.Decomposition;
-import org.apache.commons.math3.optim.SimpleVectorValueChecker;
+import org.apache.commons.math4.exception.ConvergenceException;
+import org.apache.commons.math4.exception.TooManyEvaluationsException;
+import org.apache.commons.math4.fitting.leastsquares.GaussNewtonOptimizer;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresOptimizer;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresProblem;
+import org.apache.commons.math4.fitting.leastsquares.GaussNewtonOptimizer.Decomposition;
+import org.apache.commons.math4.optim.SimpleVectorValueChecker;
 import org.junit.Test;
 
 import java.io.IOException;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithQRTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithQRTest.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithQRTest.java
index 31aa8c3..9b9f86c 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithQRTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithQRTest.java
@@ -15,12 +15,15 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.fitting.leastsquares;
+package org.apache.commons.math4.fitting.leastsquares;
 
-import org.apache.commons.math3.exception.ConvergenceException;
-import org.apache.commons.math3.exception.TooManyEvaluationsException;
-import org.apache.commons.math3.fitting.leastsquares.GaussNewtonOptimizer.Decomposition;
-import org.apache.commons.math3.optim.SimpleVectorValueChecker;
+import org.apache.commons.math4.exception.ConvergenceException;
+import org.apache.commons.math4.exception.TooManyEvaluationsException;
+import org.apache.commons.math4.fitting.leastsquares.GaussNewtonOptimizer;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresOptimizer;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresProblem;
+import org.apache.commons.math4.fitting.leastsquares.GaussNewtonOptimizer.Decomposition;
+import org.apache.commons.math4.optim.SimpleVectorValueChecker;
 import org.junit.Test;
 
 import java.io.IOException;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithSVDTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithSVDTest.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithSVDTest.java
index 4ea760e..3ad564e 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithSVDTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/GaussNewtonOptimizerWithSVDTest.java
@@ -15,16 +15,19 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.fitting.leastsquares;
-
-import org.apache.commons.math3.exception.ConvergenceException;
-import org.apache.commons.math3.exception.TooManyEvaluationsException;
-import org.apache.commons.math3.fitting.leastsquares.GaussNewtonOptimizer.Decomposition;
-import org.apache.commons.math3.fitting.leastsquares.LeastSquaresOptimizer.Optimum;
-import org.apache.commons.math3.geometry.euclidean.threed.Plane;
-import org.apache.commons.math3.geometry.euclidean.threed.Vector3D;
-import org.apache.commons.math3.optim.SimpleVectorValueChecker;
-import org.apache.commons.math3.util.FastMath;
+package org.apache.commons.math4.fitting.leastsquares;
+
+import org.apache.commons.math4.exception.ConvergenceException;
+import org.apache.commons.math4.exception.TooManyEvaluationsException;
+import org.apache.commons.math4.fitting.leastsquares.GaussNewtonOptimizer;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresOptimizer;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresProblem;
+import org.apache.commons.math4.fitting.leastsquares.GaussNewtonOptimizer.Decomposition;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresOptimizer.Optimum;
+import org.apache.commons.math4.geometry.euclidean.threed.Plane;
+import org.apache.commons.math4.geometry.euclidean.threed.Vector3D;
+import org.apache.commons.math4.optim.SimpleVectorValueChecker;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/LevenbergMarquardtOptimizerTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/LevenbergMarquardtOptimizerTest.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/LevenbergMarquardtOptimizerTest.java
index 7dff7a9..73b443d 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/LevenbergMarquardtOptimizerTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/LevenbergMarquardtOptimizerTest.java
@@ -15,22 +15,27 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.fitting.leastsquares;
-
-import org.apache.commons.math3.analysis.MultivariateMatrixFunction;
-import org.apache.commons.math3.analysis.MultivariateVectorFunction;
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.exception.TooManyEvaluationsException;
-import org.apache.commons.math3.fitting.leastsquares.LeastSquaresOptimizer.Optimum;
-import org.apache.commons.math3.fitting.leastsquares.LeastSquaresProblem.Evaluation;
-import org.apache.commons.math3.geometry.euclidean.twod.Vector2D;
-import org.apache.commons.math3.linear.DiagonalMatrix;
-import org.apache.commons.math3.linear.RealMatrix;
-import org.apache.commons.math3.linear.RealVector;
-import org.apache.commons.math3.linear.SingularMatrixException;
-import org.apache.commons.math3.optim.ConvergenceChecker;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.util.Precision;
+package org.apache.commons.math4.fitting.leastsquares;
+
+import org.apache.commons.math4.analysis.MultivariateMatrixFunction;
+import org.apache.commons.math4.analysis.MultivariateVectorFunction;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.TooManyEvaluationsException;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresBuilder;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresOptimizer;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresProblem;
+import org.apache.commons.math4.fitting.leastsquares.LevenbergMarquardtOptimizer;
+import org.apache.commons.math4.fitting.leastsquares.ParameterValidator;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresOptimizer.Optimum;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresProblem.Evaluation;
+import org.apache.commons.math4.geometry.euclidean.twod.Vector2D;
+import org.apache.commons.math4.linear.DiagonalMatrix;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.linear.SingularMatrixException;
+import org.apache.commons.math4.optim.ConvergenceChecker;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.Precision;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/MinpackTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/MinpackTest.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/MinpackTest.java
index b91140b..9fc4504 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/MinpackTest.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/MinpackTest.java
@@ -15,15 +15,19 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.fitting.leastsquares;
+package org.apache.commons.math4.fitting.leastsquares;
 
 import java.util.Arrays;
-import org.apache.commons.math3.exception.TooManyEvaluationsException;
-import org.apache.commons.math3.analysis.MultivariateVectorFunction;
-import org.apache.commons.math3.analysis.MultivariateMatrixFunction;
-import org.apache.commons.math3.fitting.leastsquares.LeastSquaresOptimizer.Optimum;
-import org.apache.commons.math3.linear.DiagonalMatrix;
-import org.apache.commons.math3.util.FastMath;
+
+import org.apache.commons.math4.analysis.MultivariateMatrixFunction;
+import org.apache.commons.math4.analysis.MultivariateVectorFunction;
+import org.apache.commons.math4.exception.TooManyEvaluationsException;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresBuilder;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresProblem;
+import org.apache.commons.math4.fitting.leastsquares.LevenbergMarquardtOptimizer;
+import org.apache.commons.math4.fitting.leastsquares.LeastSquaresOptimizer.Optimum;
+import org.apache.commons.math4.linear.DiagonalMatrix;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/RandomCirclePointGenerator.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/RandomCirclePointGenerator.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/RandomCirclePointGenerator.java
index 3f9a20d..dc7d3fb 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/RandomCirclePointGenerator.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/RandomCirclePointGenerator.java
@@ -14,16 +14,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fitting.leastsquares;
+package org.apache.commons.math4.fitting.leastsquares;
 
-import org.apache.commons.math3.random.RandomGenerator;
-import org.apache.commons.math3.random.Well44497b;
-import org.apache.commons.math3.util.MathUtils;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.distribution.RealDistribution;
-import org.apache.commons.math3.distribution.UniformRealDistribution;
-import org.apache.commons.math3.distribution.NormalDistribution;
-import org.apache.commons.math3.geometry.euclidean.twod.Vector2D;
+import org.apache.commons.math4.distribution.NormalDistribution;
+import org.apache.commons.math4.distribution.RealDistribution;
+import org.apache.commons.math4.distribution.UniformRealDistribution;
+import org.apache.commons.math4.geometry.euclidean.twod.Vector2D;
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.random.Well44497b;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.MathUtils;
 
 /**
  * Factory for generating a cloud of points that approximate a circle.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/RandomStraightLinePointGenerator.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/RandomStraightLinePointGenerator.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/RandomStraightLinePointGenerator.java
index 1c60cd2..6db49bb 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/RandomStraightLinePointGenerator.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/RandomStraightLinePointGenerator.java
@@ -15,14 +15,15 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.fitting.leastsquares;
+package org.apache.commons.math4.fitting.leastsquares;
 
 import java.awt.geom.Point2D;
-import org.apache.commons.math3.random.RandomGenerator;
-import org.apache.commons.math3.random.Well44497b;
-import org.apache.commons.math3.distribution.RealDistribution;
-import org.apache.commons.math3.distribution.UniformRealDistribution;
-import org.apache.commons.math3.distribution.NormalDistribution;
+
+import org.apache.commons.math4.distribution.NormalDistribution;
+import org.apache.commons.math4.distribution.RealDistribution;
+import org.apache.commons.math4.distribution.UniformRealDistribution;
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.random.Well44497b;
 
 /**
  * Factory for generating a cloud of points that approximate a straight line.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/StatisticalReferenceDataset.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/StatisticalReferenceDataset.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/StatisticalReferenceDataset.java
index 5f3dbba..f78b318 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/StatisticalReferenceDataset.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/StatisticalReferenceDataset.java
@@ -14,14 +14,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fitting.leastsquares;
+package org.apache.commons.math4.fitting.leastsquares;
 
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.util.ArrayList;
-import org.apache.commons.math3.analysis.MultivariateVectorFunction;
-import org.apache.commons.math3.analysis.MultivariateMatrixFunction;
-import org.apache.commons.math3.util.MathArrays;
+
+import org.apache.commons.math4.analysis.MultivariateMatrixFunction;
+import org.apache.commons.math4.analysis.MultivariateVectorFunction;
+import org.apache.commons.math4.util.MathArrays;
 
 /**
  * This class gives access to the statistical reference datasets provided by the

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/StatisticalReferenceDatasetFactory.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/StatisticalReferenceDatasetFactory.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/StatisticalReferenceDatasetFactory.java
index cca7c98..4a4178f 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/StatisticalReferenceDatasetFactory.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/StatisticalReferenceDatasetFactory.java
@@ -14,13 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fitting.leastsquares;
+package org.apache.commons.math4.fitting.leastsquares;
 
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
-import org.apache.commons.math3.util.FastMath;
+
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * A factory to create instances of {@link StatisticalReferenceDataset} from

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fitting/leastsquares/StraightLineProblem.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fitting/leastsquares/StraightLineProblem.java b/src/test/java/org/apache/commons/math4/fitting/leastsquares/StraightLineProblem.java
index f17c461..b59e703 100644
--- a/src/test/java/org/apache/commons/math4/fitting/leastsquares/StraightLineProblem.java
+++ b/src/test/java/org/apache/commons/math4/fitting/leastsquares/StraightLineProblem.java
@@ -15,13 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.fitting.leastsquares;
+package org.apache.commons.math4.fitting.leastsquares;
 
 import java.util.ArrayList;
-import org.apache.commons.math3.analysis.MultivariateVectorFunction;
-import org.apache.commons.math3.analysis.MultivariateMatrixFunction;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.stat.regression.SimpleRegression;
+
+import org.apache.commons.math4.analysis.MultivariateMatrixFunction;
+import org.apache.commons.math4.analysis.MultivariateVectorFunction;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.stat.regression.SimpleRegression;
 
 /**
  * Class that models a straight line defined as {@code y = a x + b}.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fraction/BigFractionFieldTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fraction/BigFractionFieldTest.java b/src/test/java/org/apache/commons/math4/fraction/BigFractionFieldTest.java
index 7e7b534..ccbd6eb 100644
--- a/src/test/java/org/apache/commons/math4/fraction/BigFractionFieldTest.java
+++ b/src/test/java/org/apache/commons/math4/fraction/BigFractionFieldTest.java
@@ -14,10 +14,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fraction;
+package org.apache.commons.math4.fraction;
 
 
-import org.apache.commons.math3.TestUtils;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.fraction.BigFraction;
+import org.apache.commons.math4.fraction.BigFractionField;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fraction/BigFractionFormatTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fraction/BigFractionFormatTest.java b/src/test/java/org/apache/commons/math4/fraction/BigFractionFormatTest.java
index cabff63..a398a80 100644
--- a/src/test/java/org/apache/commons/math4/fraction/BigFractionFormatTest.java
+++ b/src/test/java/org/apache/commons/math4/fraction/BigFractionFormatTest.java
@@ -15,15 +15,18 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.fraction;
+package org.apache.commons.math4.fraction;
 
 import java.math.BigDecimal;
 import java.math.BigInteger;
 import java.text.NumberFormat;
 import java.util.Locale;
 
-import org.apache.commons.math3.exception.MathParseException;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.exception.MathParseException;
+import org.apache.commons.math4.fraction.BigFraction;
+import org.apache.commons.math4.fraction.BigFractionFormat;
+import org.apache.commons.math4.fraction.ProperBigFractionFormat;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fraction/BigFractionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fraction/BigFractionTest.java b/src/test/java/org/apache/commons/math4/fraction/BigFractionTest.java
index 229da69..d921026 100644
--- a/src/test/java/org/apache/commons/math4/fraction/BigFractionTest.java
+++ b/src/test/java/org/apache/commons/math4/fraction/BigFractionTest.java
@@ -14,17 +14,19 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fraction;
+package org.apache.commons.math4.fraction;
 
 import java.math.BigDecimal;
 import java.math.BigInteger;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.exception.ConvergenceException;
-import org.apache.commons.math3.exception.MathArithmeticException;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.ZeroException;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.ConvergenceException;
+import org.apache.commons.math4.exception.MathArithmeticException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.exception.ZeroException;
+import org.apache.commons.math4.fraction.BigFraction;
+import org.apache.commons.math4.fraction.FractionConversionException;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fraction/FractionFieldTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fraction/FractionFieldTest.java b/src/test/java/org/apache/commons/math4/fraction/FractionFieldTest.java
index 200bf68..4a85f08 100644
--- a/src/test/java/org/apache/commons/math4/fraction/FractionFieldTest.java
+++ b/src/test/java/org/apache/commons/math4/fraction/FractionFieldTest.java
@@ -14,10 +14,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fraction;
+package org.apache.commons.math4.fraction;
 
 
-import org.apache.commons.math3.TestUtils;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.fraction.Fraction;
+import org.apache.commons.math4.fraction.FractionField;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fraction/FractionFormatTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fraction/FractionFormatTest.java b/src/test/java/org/apache/commons/math4/fraction/FractionFormatTest.java
index 4f95147..fc91b6c 100644
--- a/src/test/java/org/apache/commons/math4/fraction/FractionFormatTest.java
+++ b/src/test/java/org/apache/commons/math4/fraction/FractionFormatTest.java
@@ -15,13 +15,16 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.fraction;
+package org.apache.commons.math4.fraction;
 
 import java.text.NumberFormat;
 import java.util.Locale;
 
-import org.apache.commons.math3.exception.MathParseException;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.exception.MathParseException;
+import org.apache.commons.math4.fraction.Fraction;
+import org.apache.commons.math4.fraction.FractionFormat;
+import org.apache.commons.math4.fraction.ProperFractionFormat;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/fraction/FractionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/fraction/FractionTest.java b/src/test/java/org/apache/commons/math4/fraction/FractionTest.java
index 132fd0c..174fa09 100644
--- a/src/test/java/org/apache/commons/math4/fraction/FractionTest.java
+++ b/src/test/java/org/apache/commons/math4/fraction/FractionTest.java
@@ -14,13 +14,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.fraction;
-
-import org.apache.commons.math3.exception.ConvergenceException;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.exception.MathArithmeticException;
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.util.FastMath;
+package org.apache.commons.math4.fraction;
+
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.ConvergenceException;
+import org.apache.commons.math4.exception.MathArithmeticException;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.fraction.Fraction;
+import org.apache.commons.math4.fraction.FractionConversionException;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/genetics/BinaryChromosomeTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/genetics/BinaryChromosomeTest.java b/src/test/java/org/apache/commons/math4/genetics/BinaryChromosomeTest.java
index 63c04c3..b846fde 100644
--- a/src/test/java/org/apache/commons/math4/genetics/BinaryChromosomeTest.java
+++ b/src/test/java/org/apache/commons/math4/genetics/BinaryChromosomeTest.java
@@ -14,9 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.genetics;
+package org.apache.commons.math4.genetics;
 
 
+import org.apache.commons.math4.genetics.BinaryChromosome;
+import org.apache.commons.math4.genetics.Chromosome;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/genetics/BinaryMutationTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/genetics/BinaryMutationTest.java b/src/test/java/org/apache/commons/math4/genetics/BinaryMutationTest.java
index 95327fe..5ada12a 100644
--- a/src/test/java/org/apache/commons/math4/genetics/BinaryMutationTest.java
+++ b/src/test/java/org/apache/commons/math4/genetics/BinaryMutationTest.java
@@ -14,9 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.genetics;
+package org.apache.commons.math4.genetics;
 
 
+import org.apache.commons.math4.genetics.BinaryChromosome;
+import org.apache.commons.math4.genetics.BinaryMutation;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/genetics/ChromosomeTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/genetics/ChromosomeTest.java b/src/test/java/org/apache/commons/math4/genetics/ChromosomeTest.java
index 0d08812..126d5c3 100644
--- a/src/test/java/org/apache/commons/math4/genetics/ChromosomeTest.java
+++ b/src/test/java/org/apache/commons/math4/genetics/ChromosomeTest.java
@@ -14,12 +14,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.genetics;
+package org.apache.commons.math4.genetics;
 
 
 import java.util.ArrayList;
 import java.util.List;
 
+import org.apache.commons.math4.genetics.Chromosome;
+import org.apache.commons.math4.genetics.ListPopulation;
+import org.apache.commons.math4.genetics.Population;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/genetics/CycleCrossoverTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/genetics/CycleCrossoverTest.java b/src/test/java/org/apache/commons/math4/genetics/CycleCrossoverTest.java
index 7b6e6b8..740091d 100644
--- a/src/test/java/org/apache/commons/math4/genetics/CycleCrossoverTest.java
+++ b/src/test/java/org/apache/commons/math4/genetics/CycleCrossoverTest.java
@@ -14,10 +14,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.genetics;
-
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
+package org.apache.commons.math4.genetics;
+
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.genetics.BinaryChromosome;
+import org.apache.commons.math4.genetics.Chromosome;
+import org.apache.commons.math4.genetics.ChromosomePair;
+import org.apache.commons.math4.genetics.CrossoverPolicy;
+import org.apache.commons.math4.genetics.CycleCrossover;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/genetics/DummyBinaryChromosome.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/genetics/DummyBinaryChromosome.java b/src/test/java/org/apache/commons/math4/genetics/DummyBinaryChromosome.java
index e1a4a91..789da5a 100644
--- a/src/test/java/org/apache/commons/math4/genetics/DummyBinaryChromosome.java
+++ b/src/test/java/org/apache/commons/math4/genetics/DummyBinaryChromosome.java
@@ -14,10 +14,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.genetics;
+package org.apache.commons.math4.genetics;
 
 import java.util.List;
 
+import org.apache.commons.math4.genetics.AbstractListChromosome;
+import org.apache.commons.math4.genetics.BinaryChromosome;
+
 /**
  * Implementation of BinaryChromosome for testing purposes
  */

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/genetics/DummyListChromosome.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/genetics/DummyListChromosome.java b/src/test/java/org/apache/commons/math4/genetics/DummyListChromosome.java
index 4831e67..0fd1186 100644
--- a/src/test/java/org/apache/commons/math4/genetics/DummyListChromosome.java
+++ b/src/test/java/org/apache/commons/math4/genetics/DummyListChromosome.java
@@ -14,11 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.genetics;
+package org.apache.commons.math4.genetics;
 
 import java.util.Arrays;
 import java.util.List;
 
+import org.apache.commons.math4.genetics.AbstractListChromosome;
+import org.apache.commons.math4.genetics.InvalidRepresentationException;
+
 /**
  * Implementation of ListChromosome for testing purposes
  */

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/genetics/DummyRandomKey.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/genetics/DummyRandomKey.java b/src/test/java/org/apache/commons/math4/genetics/DummyRandomKey.java
index 4d671b4..594ebb3 100644
--- a/src/test/java/org/apache/commons/math4/genetics/DummyRandomKey.java
+++ b/src/test/java/org/apache/commons/math4/genetics/DummyRandomKey.java
@@ -14,10 +14,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.genetics;
+package org.apache.commons.math4.genetics;
 
 import java.util.List;
 
+import org.apache.commons.math4.genetics.AbstractListChromosome;
+import org.apache.commons.math4.genetics.RandomKey;
+
 /**
  * Implementation of RandomKey for testing purposes
  */

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/genetics/ElitisticListPopulationTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/genetics/ElitisticListPopulationTest.java b/src/test/java/org/apache/commons/math4/genetics/ElitisticListPopulationTest.java
index dbfc9f1..08dbeb3 100644
--- a/src/test/java/org/apache/commons/math4/genetics/ElitisticListPopulationTest.java
+++ b/src/test/java/org/apache/commons/math4/genetics/ElitisticListPopulationTest.java
@@ -14,13 +14,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.genetics;
+package org.apache.commons.math4.genetics;
 
 
 import java.util.Collections;
 import java.util.List;
 
-import org.apache.commons.math3.exception.OutOfRangeException;
+import org.apache.commons.math4.exception.OutOfRangeException;
+import org.apache.commons.math4.genetics.Chromosome;
+import org.apache.commons.math4.genetics.ElitisticListPopulation;
+import org.apache.commons.math4.genetics.Population;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/genetics/FitnessCachingTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/genetics/FitnessCachingTest.java b/src/test/java/org/apache/commons/math4/genetics/FitnessCachingTest.java
index 1b878f5..71ae818 100644
--- a/src/test/java/org/apache/commons/math4/genetics/FitnessCachingTest.java
+++ b/src/test/java/org/apache/commons/math4/genetics/FitnessCachingTest.java
@@ -14,12 +14,22 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.genetics;
+package org.apache.commons.math4.genetics;
 
 
 import java.util.LinkedList;
 import java.util.List;
 
+import org.apache.commons.math4.genetics.BinaryChromosome;
+import org.apache.commons.math4.genetics.BinaryMutation;
+import org.apache.commons.math4.genetics.Chromosome;
+import org.apache.commons.math4.genetics.ElitisticListPopulation;
+import org.apache.commons.math4.genetics.FixedGenerationCount;
+import org.apache.commons.math4.genetics.GeneticAlgorithm;
+import org.apache.commons.math4.genetics.OnePointCrossover;
+import org.apache.commons.math4.genetics.Population;
+import org.apache.commons.math4.genetics.StoppingCondition;
+import org.apache.commons.math4.genetics.TournamentSelection;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/genetics/FixedElapsedTimeTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/genetics/FixedElapsedTimeTest.java b/src/test/java/org/apache/commons/math4/genetics/FixedElapsedTimeTest.java
index 775bebe..75e21bb 100644
--- a/src/test/java/org/apache/commons/math4/genetics/FixedElapsedTimeTest.java
+++ b/src/test/java/org/apache/commons/math4/genetics/FixedElapsedTimeTest.java
@@ -14,12 +14,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.genetics;
+package org.apache.commons.math4.genetics;
 
 import java.util.Iterator;
 import java.util.concurrent.TimeUnit;
 
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.genetics.Chromosome;
+import org.apache.commons.math4.genetics.FixedElapsedTime;
+import org.apache.commons.math4.genetics.Population;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/genetics/FixedGenerationCountTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/genetics/FixedGenerationCountTest.java b/src/test/java/org/apache/commons/math4/genetics/FixedGenerationCountTest.java
index 37e03fa..e174879 100644
--- a/src/test/java/org/apache/commons/math4/genetics/FixedGenerationCountTest.java
+++ b/src/test/java/org/apache/commons/math4/genetics/FixedGenerationCountTest.java
@@ -14,11 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.genetics;
+package org.apache.commons.math4.genetics;
 
 
 import java.util.Iterator;
 
+import org.apache.commons.math4.genetics.Chromosome;
+import org.apache.commons.math4.genetics.FixedGenerationCount;
+import org.apache.commons.math4.genetics.Population;
 import org.junit.Assert;
 import org.junit.Test;
 


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