def test_seriesStats(self):
rdd = self.sc.parallelize([(0, array([1, 2, 3, 4, 5]))])
data = Series(rdd)
assert(allclose(data.seriesMean().first()[1], 3.0))
assert(allclose(data.seriesSum().first()[1], 15.0))
assert(allclose(data.seriesMedian().first()[1], 3.0))
assert(allclose(data.seriesStdev().first()[1], 1.4142135))
assert(allclose(data.seriesStat('mean').first()[1], 3.0))
assert(allclose(data.seriesStats().select('mean').first()[1], 3.0))
assert(allclose(data.seriesStats().select('count').first()[1], 5))
assert(allclose(data.seriesPercentile(25).first()[1], 2.0))
assert(allclose(data.seriesPercentile((25, 75)).first()[1], array([2.0, 4.0])))
