def test_fleiss_pi_disagree(self):
'''
Test Pi upon a hypothetical dataset containing large disagreement.
'''
data = LARGE_DISAGREEMENT
self.assertAlmostEqual(fleiss_pi_linear(data),
Decimal('-0.3333333333333333333333333333'))
def test_fliess_pi_g5_ch1(self):
'''
Test Pi upon Group 5, Chapter 1, of Kazantseva (2012) data.
'''
data = {'ch1': KAZANTSEVA2012_G5['ch1']}
self.assertAlmostEqual(fleiss_pi_linear(data),
Decimal('0.2226720647773279352226720649'))
def test_fleiss_pi_complete(self):
'''
Test Pi upon a hypothetical dataset containing complete agreement.
'''
data_complete = COMPLETE_AGREEMENT
pi = fleiss_pi_linear(data_complete)
self.assertEqual(pi, Decimal('1'))
def test_fleiss_pi_g2_ch2(self):
'''
Test Pi upon Group 2, Chapter 2, of Kazantseva (2012) data.
'''
data = {'ch2': KAZANTSEVA2012_G2['ch2']}
# Test
self.assertAlmostEqual(fleiss_pi_linear(data),
Decimal('0.5335548172757475083056478405'))
def test_fleiss_pi(self):
'''
Test Fleiss' Pi.
'''
data1 = {'i1': {'c1': [2, 8, 2, 1],
'c2': [2, 1, 7, 2, 1]}}
pi1 = fleiss_pi_linear(data1)
pi1f = fleiss_pi_linear(data1)
self.assertAlmostEqual(pi1,
Decimal('0.7267552182163187855787476281'))
self.assertEqual(pi1, pi1f)
data2 = {'i1': {'c1': [2, 8, 2, 1],
'c2': [11, 2]}}
pi2 = fleiss_pi_linear(data2)
pi2f = fleiss_pi_linear(data2)
self.assertAlmostEqual(pi2,
Decimal('0.1428571428571428571428571429'))
self.assertEqual(pi2, pi2f)
self.assertTrue(pi2 < pi1)
def test_multiple_boundary_types(self):
'''
Test multiple boundaries.
'''
value = fleiss_pi_linear(MULTIPLE_BOUNDARY_TYPES)
self.assertAlmostEqual(value, Decimal('0.4666666666666666666666666667'))
def test_fleiss_pi_g2(self):
'''
Test Pi upon Group 2 of Kazantseva (2012) data.
'''
self.assertAlmostEqual(fleiss_pi_linear(KAZANTSEVA2012_G2),
Decimal('0.4083169765912929422042553174'))
def test_fliess_pi_g5(self):
'''
Test Pi upon Group 5 of Kazantseva (2012) data.
'''
self.assertAlmostEqual(fleiss_pi_linear(KAZANTSEVA2012_G5),
Decimal('0.2399575652197196472212284944'))
