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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2020/09/23 00:07:40 UTC

[GitHub] [spark] WeichenXu123 commented on a change in pull request #27473: [SPARK-30699][ML][PYSPARK] GMM blockify input vectors

WeichenXu123 commented on a change in pull request #27473:
URL: https://github.com/apache/spark/pull/27473#discussion_r493100573



##########
File path: mllib-local/src/main/scala/org/apache/spark/ml/stat/distribution/MultivariateGaussian.scala
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@@ -55,7 +55,7 @@ class MultivariateGaussian @Since("2.0.0") (
    */
   @transient private lazy val tuple = {
     val (rootSigmaInv, u) = calculateCovarianceConstants
-    val rootSigmaInvMat = Matrices.fromBreeze(rootSigmaInv)
+    val rootSigmaInvMat = Matrices.fromBreeze(rootSigmaInv).toDense

Review comment:
       See comment in #29782




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