Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/3397#discussion_r20708251
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/api/python/PythonMLLibAPI.scala ---
@@ -74,13 +74,27 @@ class PythonMLLibAPI extends Serializable {
learner: GeneralizedLinearAlgorithm[_ <: GeneralizedLinearModel],
data: JavaRDD[LabeledPoint],
initialWeights: Vector): JList[Object] = {
- // Disable the uncached input warning because 'data' is a deliberately
uncached MappedRDD.
- learner.disableUncachedWarning()
- val model = learner.run(data.rdd, initialWeights)
+ val model =
learner.run(data.rdd.persist(StorageLevel.MEMORY_AND_DISK), initialWeights)
List(model.weights, model.intercept).map(_.asInstanceOf[Object]).asJava
}
/**
+ * Return the Updater from string
+ */
+ def getUpdateFromString(regType: String): Updater = {
+ if (regType == "l2") {
+ new SquaredL2Updater
+ } else if (regType == "l1") {
+ new L1Updater
+ } else if (regType == null || regType == "none") {
+ new SimpleUpdater
+ } else {
+ throw new java.lang.IllegalArgumentException("Invalid value for
'regType' parameter."
--- End diff --
`java.lang.` is not necessary
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