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From myui <...@git.apache.org>
Subject [GitHub] incubator-hivemall pull request #52: [HIVEMALL-78] Implement AUC UDAF for bi...
Date Tue, 28 Feb 2017 07:14:06 GMT
Github user myui commented on a diff in the pull request:

    https://github.com/apache/incubator-hivemall/pull/52#discussion_r103389250
  
    --- Diff: core/src/main/java/hivemall/evaluation/AUCUDAF.java ---
    @@ -49,35 +50,251 @@
     @SuppressWarnings("deprecation")
     @Description(
             name = "auc",
    -        value = "_FUNC_(array rankItems, array correctItems [, const int recommendSize
= rankItems.size])"
    +        value = "_FUNC_(array rankItems | double score, array correctItems | double label
"
    +                + "[, const int recommendSize = rankItems.size ])"
                     + " - Returns AUC")
     public final class AUCUDAF extends AbstractGenericUDAFResolver {
     
    -    // prevent instantiation
    -    private AUCUDAF() {}
    -
         @Override
         public GenericUDAFEvaluator getEvaluator(@Nonnull TypeInfo[] typeInfo) throws SemanticException
{
             if (typeInfo.length != 2 && typeInfo.length != 3) {
                 throw new UDFArgumentTypeException(typeInfo.length - 1,
                     "_FUNC_ takes two or three arguments");
             }
     
    -        ListTypeInfo arg1type = HiveUtils.asListTypeInfo(typeInfo[0]);
    -        if (!HiveUtils.isPrimitiveTypeInfo(arg1type.getListElementTypeInfo())) {
    -            throw new UDFArgumentTypeException(0,
    -                "The first argument `array rankItems` is invalid form: " + typeInfo[0]);
    +        if (HiveUtils.isNumberTypeInfo(typeInfo[0]) && HiveUtils.isNumberTypeInfo(typeInfo[1]))
{
    --- End diff --
    
    `&& HiveUtils.isIntegerTypeInfo(typeInfo[1])`


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