Github user hhbyyh commented on a diff in the pull request:
https://github.com/apache/spark/pull/9520#discussion_r48692582
--- Diff: mllib/src/main/scala/org/apache/spark/mllib/linalg/Matrices.scala
---
@@ -879,6 +879,7 @@ object Matrices {
case dm: BDM[Double] =>
new DenseMatrix(dm.rows, dm.cols, dm.data, dm.isTranspose)
case sm: BSM[Double] =>
+ sm.compact()
--- End diff --
I'm not sure if this would be regarded as an error for Breeze, since they
did provide a compact function. I'll try to check with Breeze.
Close the PR for now.
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