Github user maropu commented on a diff in the pull request:
https://github.com/apache/incubator-hivemall/pull/122#discussion_r144753777
--- Diff: core/src/main/java/hivemall/evaluation/AUCUDAF.java ---
@@ -110,7 +110,7 @@ public ClassificationEvaluator() {}
@Override
public ObjectInspector init(Mode mode, ObjectInspector[]
parameters) throws HiveException {
- assert (parameters.length == 2 || parameters.length == 3) :
parameters.length;
+ assert (0 < parameters.length && parameters.length <= 3) :
parameters.length;
--- End diff --
In Spark, this assertion fails because Spark passes a single parameter in
`parameters` here for final output (IIUC [`AUC` finally outputs a single
double-typed value for each
group](https://github.com/apache/incubator-hivemall/pull/122/files#diff-9d758588c8fad559a15d0b2362e757b2R1134)).
In Hive, does this work well?
---
