Github user thunterdb commented on a diff in the pull request:
https://github.com/apache/spark/pull/17108#discussion_r107505718
--- Diff:
mllib-local/src/test/scala/org/apache/spark/ml/util/TestingUtils.scala ---
@@ -32,6 +32,10 @@ object TestingUtils {
* the relative tolerance is meaningless, so the exception will be
raised to warn users.
*/
private def RelativeErrorComparison(x: Double, y: Double, eps: Double):
Boolean = {
+ // Special case for NaNs
--- End diff --
@jkbradley I do not think this change is going to be controversial, but I
want to point out that from now on, matrix/vector checks will not _always_
throw errors when comparing `NaN`: the previous code would throw whenever a NaN
was found.
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