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[SPARK-6262][MLLIB]Implement missing methods for MultivariateStatisticalSummary #5359

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[SPARK-6262][MLLIB]Implement missing methods for MultivariateStatisticalSummary #5359

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6 changes: 6 additions & 0 deletions python/pyspark/mllib/stat/_statistics.py
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,12 @@ def max(self):
def min(self):
return self.call("min").toArray()

def normL1(self):
return self.call("normL1").toArray()

def normL2(self):
return self.call("normL2").toArray()


class Statistics(object):

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6 changes: 6 additions & 0 deletions python/pyspark/mllib/tests.py
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Expand Up @@ -357,6 +357,12 @@ def test_col_with_different_rdds(self):
summary = Statistics.colStats(data)
self.assertEqual(10, summary.count())

def test_col_norms(self):
data = RandomRDDs.normalVectorRDD(self.sc, 1000, 10, 10)
summary = Statistics.colStats(data)
self.assertEqual(10, len(summary.normL1()))
self.assertEqual(10, len(summary.normL2()))


class VectorUDTTests(PySparkTestCase):

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