def test_fleiss_kappa_disagree(self):
'''
Test Kappa upon a hypothetical dataset containing large disagreement.
'''
data = LARGE_DISAGREEMENT
self.assertAlmostEqual(fleiss_kappa_linear(data),
Decimal('0'))
def test_fleiss_kappa_complete(self):
'''
Test Kappa upon a hypothetical dataset containing complete agreement.
'''
data_complete = COMPLETE_AGREEMENT
kappa = fleiss_kappa_linear(data_complete)
self.assertEqual(kappa, Decimal('1.0'))
def test_fleiss_kappa_linear_g2(self):
'''
Test Kappa upon Group 2 of Kazantseva (2012) data.
'''
data = KAZANTSEVA2012_G2
self.assertAlmostEqual(fleiss_kappa_linear(data),
Decimal('0.4106841873722731313872632664'))
def test_fleiss_kappa_linear_g5(self):
'''
Test Kappa upon Group 5 of Kazantseva (2012) data.
'''
data = KAZANTSEVA2012_G5
self.assertAlmostEqual(fleiss_kappa_linear(data),
Decimal('0.2421099324579046442791865267'))
def test_fleiss_kappa_linear_g2_ch2(self):
'''
Test Kappa upon Group 2, Chapter 2, of Kazantseva (2012) data.
'''
data = KAZANTSEVA2012_G2['ch2']
data = {'ch2': data}
self.assertAlmostEqual(fleiss_kappa_linear(data),
Decimal('0.5339895791843801565560911374'))
def test_fleiss_kappa_linear_g5_ch1(self):
'''
Test Kappa upon Group 5, Chapter 1, of Kazantseva (2012) data.
'''
data = KAZANTSEVA2012_G5['ch1']
data = {'ch1': data}
self.assertAlmostEqual(fleiss_kappa_linear(data),
Decimal('0.2258064516129032258064516129'))
def test_fleiss_kappa(self):
'''
Test Cohen's and Fleiss' Kappa.
'''
data1 = {'i1': {'c1': [2, 8, 2, 1],
'c2': [2, 1, 7, 2, 1]}}
kappa1 = fleiss_kappa_linear(data1)
kappa1f = fleiss_kappa_linear(data1)
self.assertAlmostEqual(kappa1,
Decimal('0.7272727272727272727272727273'))
self.assertEqual(kappa1, kappa1f)
data2 = {'i1': {'c1': [2, 8, 2, 1],
'c2': [11, 2]}}
kappa2 = fleiss_kappa_linear(data2)
kappa2f = fleiss_kappa_linear(data2)
self.assertAlmostEqual(kappa2,
Decimal('0.1489361702127659574468085107'))
self.assertEqual(kappa2, kappa2f)
self.assertTrue(kappa2 < kappa1)
def test_multiple_boundary_types(self):
'''
Test multiple boundaries.
'''
value = fleiss_kappa_linear(MULTIPLE_BOUNDARY_TYPES)
self.assertAlmostEqual(value, Decimal('0.4718309859154929577464788733'))
