def test_zscores(self):
"""zscores should convert array to zscores within each column"""
a = reshape(arange(15),(5,3))
z = zscores(a)
self.assertEqual(z[2], array([0,0,0])) #middle should be mean
self.assertFloatEqual(z[0], [-1.41421356]*3)
#check that it works when arrays aren't sorted
a[0] = a[-1]
a[1] = a[-2]
a[0, -1] = 50
z = zscores(a)
self.assertEqual(z[0,0],z[-1,0])
self.assertFloatEqual(z[0,-1], 1.9853692256351525)
self.assertFloatEqual(z[-1,-1], -0.30544141932848506)
def test_zscores(self):
"""zscores should convert array to zscores within each column"""
a = reshape(arange(15), (5, 3))
z = zscores(a)
self.assertEqual(z[2], array([0, 0, 0])) #middle should be mean
self.assertFloatEqual(z[0], [-1.41421356] * 3)
#check that it works when arrays aren't sorted
a[0] = a[-1]
a[1] = a[-2]
a[0, -1] = 50
z = zscores(a)
self.assertEqual(z[0, 0], z[-1, 0])
self.assertFloatEqual(z[0, -1], 1.9853692256351525)
self.assertFloatEqual(z[-1, -1], -0.30544141932848506)
def test_logzscores(self):
"""logzscores should perform zscores on log of a"""
a = reshape(arange(1,16),(5,3)) #won't work with zero value
self.assertFloatEqual(logzscores(a), zscores(log2(a)))
def test_logzscores(self):
"""logzscores should perform zscores on log of a"""
a = reshape(arange(1, 16), (5, 3)) #won't work with zero value
self.assertFloatEqual(logzscores(a), zscores(log2(a)))