Github user holdenk commented on a diff in the pull request:
https://github.com/apache/spark/pull/9441#discussion_r43829896
--- Diff: python/pyspark/mllib/linalg/distributed.py ---
@@ -297,6 +444,20 @@ def numCols(self):
"""
return self._java_matrix_wrapper.call("numCols")
+ def computeGramianMatrix(self):
+ """
+ Computes the Gramian matrix `A^T A`. Note that this cannot be
+ computed on matrices with more than 65535 columns.
--- End diff --
We should maybe also add this note about max columns to the
IndexedRowMatrix.scala for consistency.
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