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[SPARK-9118][ML]: Implement IntArrayParam in mllib #7481

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[SPARK-9118][ML]: Implement IntArrayParam in mllib #7481

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e3677c9
Merge pull request #1 from apache/master
rekhajoshm May 5, 2015
106fd8e
Merge pull request #2 from apache/master
rekhajoshm May 8, 2015
0be142d
Merge pull request #3 from apache/master
rekhajoshm Jun 22, 2015
d3b1766
Implement IntArrayParam
rekhajoshm Jul 17, 2015
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16 changes: 16 additions & 0 deletions mllib/src/main/scala/org/apache/spark/ml/param/params.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -295,6 +295,22 @@ class DoubleArrayParam(parent: Params, name: String, doc: String, isValid: Array
w(value.asScala.map(_.asInstanceOf[Double]).toArray)
}

/**
* :: DeveloperApi ::
* Specialized version of [[Param[Array[Int]]]] for Java.
*/
@DeveloperApi
class IntArrayParam(parent: Params, name: String, doc: String, isValid: Array[Int] => Boolean)
extends Param[Array[Int]](parent, name, doc, isValid) {

def this(parent: Params, name: String, doc: String) =
this(parent, name, doc, ParamValidators.alwaysTrue)

/** Creates a param pair with a [[java.util.List]] of values (for Java and Python). */
def w(value: java.util.List[java.lang.Integer]): ParamPair[Array[Int]] =
w(value.asScala.map(_.asInstanceOf[Int]).toArray)
}

/**
* :: Experimental ::
* A param and its value.
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