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Posted to dev@mahout.apache.org by "Andrew Palumbo (JIRA)" <ji...@apache.org> on 2015/04/25 00:32:38 UTC

[jira] [Created] (MAHOUT-1696) QRDecomposition.solve(...) can return incorrect Matrix types

Andrew Palumbo created MAHOUT-1696:
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             Summary: QRDecomposition.solve(...) can return incorrect Matrix types
                 Key: MAHOUT-1696
                 URL: https://issues.apache.org/jira/browse/MAHOUT-1696
             Project: Mahout
          Issue Type: Bug
          Components: Math
    Affects Versions: 0.10.0
            Reporter: Andrew Palumbo
            Assignee: Andrew Palumbo
             Fix For: 0.10.1, 0.11.0


in QRDecomposition.java, QRDecomposition(Matrix A).solve(Matrix B) is returning a Matrix of type B when it should be returning a matrix of type A.  This can lead to Sparse Matrices which should be Dense and vice versa.   



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