Github user tgaloppo commented on a diff in the pull request:
https://github.com/apache/spark/pull/4459#discussion_r24302764
--- Diff: mllib/src/main/scala/org/apache/spark/mllib/linalg/BLAS.scala ---
@@ -255,6 +255,20 @@ private[spark] object BLAS extends Serializable with
Logging {
}
}
+ // Workaround for SparseVectors.
+ def syr(alpha: Double, x: SparseVector, A: DenseMatrix) {
+ val mA = A.numRows
+ val nA = A.numCols
+ require(mA == nA, s"A is not a symmetric matrix. A: $mA x $nA")
--- End diff --
Just a general comment -- I find this message a little misleading, since it
really only checks for squareness; I realize this is copied from the dense
syr() [I found it misleading there, too].
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