GitHub | jrwalk | 5 months ago
  1. 0

    `FunctionTransformer` serialization in `DataFrameMapper` failing on `numpy.log`

    GitHub | 5 months ago | jrwalk
  2. 0

    FunctionTransformer should support all 1-parameter Numpy universal functions (ufuncs)

    GitHub | 5 months ago | keithgw
    java.lang.IllegalArgumentException: The function object (Java class net.razorvine.pickle.objects.ClassDictConstructor) is not a Numpy universal function
  3. 0
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    Root Cause Analysis

    1. java.lang.IllegalArgumentException

      at sklearn.preprocessing.FunctionTransformer.parseUFunc()
    2. sklearn.preprocessing
      1. sklearn.preprocessing.FunctionTransformer.parseUFunc(
      2. sklearn.preprocessing.FunctionTransformer.encodeFeatures(
      2 frames
    3. sklearn_pandas
      1. sklearn_pandas.DataFrameMapper.encodeFeatures(
      1 frame
    4. org.jpmml.sklearn
      2. org.jpmml.sklearn.Main.main(
      2 frames