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[SPARK-5021] [MLlib] Gaussian Mixture now supports Sparse Input
Following discussion in the Jira. Author: MechCoder <manojkumarsivaraj334@gmail.com> Closes #4459 from MechCoder/sparse_gmm and squashes the following commits: 1b18dab [MechCoder] Rewrite syr for sparse matrices e579041 [MechCoder] Add test for covariance matrix 5cb370b [MechCoder] Separate tests for sparse data 5e096bd [MechCoder] Alphabetize and correct error message e180f4c [MechCoder] [SPARK-5021] Gaussian Mixture now supports Sparse Input
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- mllib/src/main/scala/org/apache/spark/mllib/clustering/GaussianMixture.scala 16 additions, 15 deletions...a/org/apache/spark/mllib/clustering/GaussianMixture.scala
- mllib/src/main/scala/org/apache/spark/mllib/linalg/BLAS.scala 34 additions, 2 deletions...b/src/main/scala/org/apache/spark/mllib/linalg/BLAS.scala
- mllib/src/main/scala/org/apache/spark/mllib/stat/distribution/MultivariateGaussian.scala 5 additions, 5 deletions.../spark/mllib/stat/distribution/MultivariateGaussian.scala
- mllib/src/test/scala/org/apache/spark/mllib/clustering/GaussianMixtureSuite.scala 62 additions, 4 deletions.../apache/spark/mllib/clustering/GaussianMixtureSuite.scala
- mllib/src/test/scala/org/apache/spark/mllib/linalg/BLASSuite.scala 8 additions, 0 deletions.../test/scala/org/apache/spark/mllib/linalg/BLASSuite.scala
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