[jira] [Created] (SPARK-14164) Add input layer validation to MultilayerPerceptronClassifier

["Dongjoon Hyun (JIRA)" <ji...@apache.org>]

Dongjoon Hyun created SPARK-14164:
-------------------------------------

             Summary: Add input layer validation to MultilayerPerceptronClassifier
                 Key: SPARK-14164
                 URL: https://issues.apache.org/jira/browse/SPARK-14164
             Project: Spark
          Issue Type: Improvement
          Components: MLlib
            Reporter: Dongjoon Hyun
            Priority: Minor


This issue adds an input layer validation and related testcases to MultilayerPerceptronClassifier.

{code:title=MultilayerPerceptronClassifier.scala|borderStyle=solid}
-    // TODO: how to check ALSO that all elements are greater than 0?
-    ParamValidators.arrayLengthGt(1)
+    (t: Array[Int]) => t.forall(ParamValidators.gt(0)) && t.length > 1
{code}



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