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Chee Sing Lee updated MATH-1477: -------------------------------- Description: When performing a regression with a subset of predictors, an ArrayIndexOutOfBounds exception will occur for certain subset selections. For example, this appears to happen consistently for regressions without a constant term when the predictor at index 0 is not selected. I do not understand at all the algorithm used to reorder the predictors when a subset is requested, but the fix appears to be a simple correction to the indexing range in the for-loop in the regress method of MillerUpdatingRegression.java. Patch with expanded unit test to follow shortly. was: When performing a regression with a subset of predictors, an ArrayIndexOutOfBounds exception will occur for certain subset selections. For example, this appears to happen consistently for regressions without a constant term when the predictor at index 0 is not selected. I do not understand at all algorithm used to reorder the predictors when a subset is used, but the fix appears to be a simple correction to the indexing range in the for-loop at line 1059 of MillerUpdatingRegression.java. Patch with expanded unit test to follow shortly. > MillerUpdatingRegression: ArrayIndexOutOfBounds when calling regress with > variablesToInclude parameter > ------------------------------------------------------------------------------------------------------ > > Key: MATH-1477 > URL: https://issues.apache.org/jira/browse/MATH-1477 > Project: Commons Math > Issue Type: Bug > Affects Versions: 3.6.1 > Reporter: Chee Sing Lee > Priority: Major > Labels: easyfix, newbie, patch > Time Spent: 10m > Remaining Estimate: 0h > > When performing a regression with a subset of predictors, an > ArrayIndexOutOfBounds exception will occur for certain subset selections. For > example, this appears to happen consistently for regressions without a > constant term when the predictor at index 0 is not selected. > I do not understand at all the algorithm used to reorder the predictors when > a subset is requested, but the fix appears to be a simple correction to the > indexing range in the for-loop in the regress method of > MillerUpdatingRegression.java. > > Patch with expanded unit test to follow shortly. -- This message was sent by Atlassian JIRA (v7.6.3#76005)