Github user vrilleup commented on a diff in the pull request:
https://github.com/apache/spark/pull/964#discussion_r13896269
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/linalg/distributed/RowMatrix.scala
---
@@ -201,6 +202,31 @@ class RowMatrix(
}
/**
+ * Multiply the Gramian matrix `A^T A` by a DenseVector on the right.
+ *
+ * @param v a local DenseVector whose length must match the number of
columns of this matrix.
+ * @return a local DenseVector representing the product.
+ */
+ private[mllib] def multiplyGramianMatrix(v: DenseVector): DenseVector = {
--- End diff --
name changed
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