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From myui <...@git.apache.org>
Subject [GitHub] incubator-hivemall issue #121: [WIP][HIVEMALL-151] Support Matrix conversion...
Date Fri, 06 Oct 2017 10:57:31 GMT
Github user myui commented on the issue:

    https://github.com/apache/incubator-hivemall/pull/121
  
    ```
    Caused by: java.lang.IllegalArgumentException: numCols SHOULD be greater than zero. numCols
= rowEnd - rowStart = 0 - 0 = 0
    at hivemall.math.matrix.MatrixUtils.sortIndicies(MatrixUtils.java:284)
    at hivemall.math.matrix.MatrixUtils.coo2csr(MatrixUtils.java:121)
    at hivemall.math.matrix.sparse.floats.DoKFloatMatrix.toRowMajorMatrix(DoKFloatMatrix.java:367)
    at hivemall.math.matrix.sparse.floats.DoKFloatMatrix.toRowMajorMatrix(DoKFloatMatrix.java:41)
    at hivemall.recommend.SlimUDTF.train(SlimUDTF.java:402)
    at hivemall.recommend.SlimUDTF.replayTrain(SlimUDTF.java:647)
    at hivemall.recommend.SlimUDTF.runIterativeTraining(SlimUDTF.java:592)
    ```


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