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https://issues.apache.org/jira/browse/HIVEMALL-71?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Makoto Yui closed HIVEMALL-71.
------------------------------
Resolution: Fixed
Assignee: Makoto Yui
> Handle null values in RescaleUDF.java
> -------------------------------------
>
> Key: HIVEMALL-71
> URL: https://issues.apache.org/jira/browse/HIVEMALL-71
> Project: Hivemall
> Issue Type: Improvement
> Reporter: Yuming Wang
> Assignee: Makoto Yui
>
> Change:
> {code:java}
> public FloatWritable evaluate(final float value, final float min,
> final float max) {
> return val(min_max_normalization(value, min, max));
> }
> {code}
> to:
> {code:java}
> @Nullable
> public FloatWritable evaluate(final Float value, final Float min,
> final Float max) throws HiveException {
> if(value == null) {
> return null;
> }
> if(min == null) throw new HiveException("min should not be null");
> if(max == null) throw new HiveException("max should not be null");
> return val(min_max_normalization(value.floatValue(),
> min.floatValue(), max. floatValue()));
> }
> {code}
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