def testNumpySTDMultiArrayreturnsSTD(self):
     npsy = NumpySciPy()
     array = [[500,200],[400,600]]
     actual = npsy.numpySTD(array)
     expected = 147.9019945774904
     self.assertEqual(expected,actual)
 def testNumpySTDOneValueArrayreturnsSTD(self):
     npsy = NumpySciPy()
     array = [500]
     actual = npsy.numpySTD(array)
     expected = 0.00
     self.assertEqual(expected,actual)