Github user sethah commented on a diff in the pull request:
https://github.com/apache/spark/pull/16407#discussion_r93883879
--- Diff:
mllib/src/test/scala/org/apache/spark/ml/classification/LogisticRegressionSuite.scala
---
@@ -359,8 +359,16 @@ class LogisticRegressionSuite
assert(pred == predFromProb)
}
- // force it to use probability2prediction
+ // force it to use raw2prediction
model.setProbabilityCol("")
+ val resultsUsingRaw2Predict =
+
model.transform(smallMultinomialDataset).select("prediction").as[Double].collect()
+
resultsUsingRaw2Predict.zip(results.select("prediction").as[Double].collect()).foreach
{
+ case (pred1, pred2) => assert(pred1 === pred2)
+ }
+
+ // force it to use probability2prediction
+ model.setRawPredictionCol("")
--- End diff --
this needs to be changed to
`model.setRawPredictionCol("").setProbabilityCol("probability")`, otherwise it
will use the `predict` udf here.
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