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https://issues.apache.org/jira/browse/MAHOUT-355?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen updated MAHOUT-355:
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Resolution: Fixed
Fix Version/s: 0.4
Status: Resolved (was: Patch Available)
Looks so reasonable I committed it.
> Misleading JavaDoc comment in FPGrowth
> --------------------------------------
>
> Key: MAHOUT-355
> URL: https://issues.apache.org/jira/browse/MAHOUT-355
> Project: Mahout
> Issue Type: Bug
> Components: Frequent Itemset/Association Rule Mining
> Affects Versions: 0.2, 0.3
> Reporter: Sebastian Schelter
> Priority: Trivial
> Fix For: 0.4
>
> Attachments: MAHOUT-355.patch
>
>
> The JavaDoc for
> org.apache.mahout.fpm.pfpgrowth.fpgrowth.FPGrowth.generateTopKFrequentPatterns(...)
> states that if the parameter returnableFeatures is null then patterns for
> every frequent item are generated.
> But this works only if you give the method an empty set, submitting null
> results in a NullPointerException. Either change the comment or do a null
> check here.
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