Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/11560#discussion_r55356255
--- Diff:
mllib/src/test/java/org/apache/spark/mllib/recommendation/JavaALSSuite.java ---
@@ -48,14 +47,14 @@ public void tearDown() {
sc = null;
}
- void validatePrediction(
+ private void validatePrediction(
MatrixFactorizationModel model,
int users,
int products,
- DoubleMatrix trueRatings,
+ double[] trueRatings,
--- End diff --
For the record, this is not a `DenseMatrix<Double>` because the Scala
method this relies on returns a `DenseMatrix<Object>` as far as Java is
concerned. It ended up being easier just to make this private test method pass
around an array, I think.
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