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From sethah <...@git.apache.org>
Subject [GitHub] spark pull request #14834: [SPARK-17163][ML][WIP] Unified LogisticRegression...
Date Thu, 08 Sep 2016 23:02:08 GMT
Github user sethah commented on a diff in the pull request:

    https://github.com/apache/spark/pull/14834#discussion_r78104785
  
    --- Diff: mllib/src/test/scala/org/apache/spark/ml/classification/LogisticRegressionSuite.scala
---
    @@ -232,6 +363,47 @@ class LogisticRegressionSuite
         }
       }
     
    +  test("coefficients and intercept methods") {
    +    val mlr = new LogisticRegression().setMaxIter(1)
    +    val mlrModel = mlr.fit(smallMultinomialDataset)
    +    val thrownCoef = intercept[SparkException] {
    +      mlrModel.coefficients
    +    }
    +    val thrownIntercept = intercept[SparkException] {
    +      mlrModel.intercept
    +    }
    +    assert(thrownCoef.getMessage().contains("use coefficientMatrix instead"))
    +    assert(thrownIntercept.getMessage().contains("use interceptVector instead"))
    +
    +    val blr = new LogisticRegression().setMaxIter(1)
    --- End diff --
    
    In tests like these, perhaps we should explicitly set the family to be certain of the
code path. We already have a test to check the family detection code. I'll add this in my
next commit.


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