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SPARK-1215 [MLLIB]: Clustering: Index out of bounds error (2)
Added check to LocalKMeans.scala: kMeansPlusPlus initialization to handle case with fewer distinct data points than clusters k. Added two related unit tests to KMeansSuite. (Re-submitting PR after tangling commits in PR 1407 apache#1407 ) Author: Joseph K. Bradley <joseph.kurata.bradley@gmail.com> Closes apache#1468 from jkbradley/kmeans-fix and squashes the following commits: 4e9bd1e [Joseph K. Bradley] Updated PR per comments from mengxr 6c7a2ec [Joseph K. Bradley] Added check to LocalKMeans.scala: kMeansPlusPlus initialization to handle case with fewer distinct data points than clusters k. Added two related unit tests to KMeansSuite.
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