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[SPARK-5145][Mllib] Add BLAS.dsyr and use it in GaussianMixtureEM
This pr uses BLAS.dsyr to replace few implementations in GaussianMixtureEM. Author: Liang-Chi Hsieh <viirya@gmail.com> Closes #3949 from viirya/blas_dsyr and squashes the following commits: 4e4d6cf [Liang-Chi Hsieh] Add unit test. Rename function name, modify doc and style. 3f57fd2 [Liang-Chi Hsieh] Add BLAS.dsyr and use it in GaussianMixtureEM.
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- mllib/src/main/scala/org/apache/spark/mllib/clustering/GaussianMixtureEM.scala 6 additions, 4 deletions...org/apache/spark/mllib/clustering/GaussianMixtureEM.scala
- mllib/src/main/scala/org/apache/spark/mllib/linalg/BLAS.scala 26 additions, 0 deletions...b/src/main/scala/org/apache/spark/mllib/linalg/BLAS.scala
- mllib/src/test/scala/org/apache/spark/mllib/linalg/BLASSuite.scala 41 additions, 0 deletions.../test/scala/org/apache/spark/mllib/linalg/BLASSuite.scala
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