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From "Phil Steitz (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MATH-1189) SimpleRegression may not report fit statistics correctly for perfect linear models
Date Sat, 10 Jan 2015 01:16:34 GMT
Phil Steitz created MATH-1189:
---------------------------------

             Summary: SimpleRegression may not report fit statistics correctly for perfect
linear models
                 Key: MATH-1189
                 URL: https://issues.apache.org/jira/browse/MATH-1189
             Project: Commons Math
          Issue Type: Bug
    Affects Versions: 3.3
            Reporter: Phil Steitz


The getSignificance(), getRSquare() and getR() methods can return infinite values when they
should return 0, 1 and 1 respectively if the sum of squared errors is exactly 0.



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