Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/19208#discussion_r150620648
--- Diff:
mllib/src/test/scala/org/apache/spark/ml/tuning/CrossValidatorSuite.scala ---
@@ -187,6 +191,55 @@ class CrossValidatorSuite
.compareParamMaps(cv.getEstimatorParamMaps,
cv2.getEstimatorParamMaps)
}
+ test("CrossValidator expose sub models") {
+ val lr = new LogisticRegression
+ val lrParamMaps = new ParamGridBuilder()
+ .addGrid(lr.regParam, Array(0.001, 1000.0))
+ .addGrid(lr.maxIter, Array(0, 3))
+ .build()
+ val eval = new BinaryClassificationEvaluator
+ val numFolds = 3
+ val subPath = new File(tempDir, "testCrossValidatorSubModels")
+ val persistSubModelsPath = new File(subPath, "subModels").toString
--- End diff --
not used
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