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Add paired t-test greater and less than comparisons #85

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Add paired t-test greater and less than comparisons #85

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81efa3b
Add paired t-test greater and less than options
Magnushhoie Oct 18, 2022
4c8730b
Add paired t-test greater and less than options
Magnushhoie Oct 18, 2022
9efa8d6
tests for t-test ind + paired paired gt lt
Magnushhoie Nov 12, 2022
0830658
test ttest_rel specify two-sided
Magnushhoie Nov 12, 2022
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11 changes: 10 additions & 1 deletion statannotations/stats/StatTest.py
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Original file line number Diff line number Diff line change
Expand Up @@ -117,7 +117,16 @@ def short_name(self):
't-test_welch', 't', equal_var=False),

't-test_paired': StatTest(stats.ttest_rel,
't-test paired samples', 't-test_rel', 't'),
't-test paired samples', 't-test_rel', 't'
alternative="two-sided"),

't-test_paired-gt': StatTest(stats.ttest_rel,
't-test paired samples', 't-test_rel', 't',
alternative="greater"),

't-test_paired-ls': StatTest(stats.ttest_rel,
't-test paired samples', 't-test_rel', 't',
alternative="less"),

'Wilcoxon': StatTest(stats.wilcoxon,
'Wilcoxon test (paired samples)', 'Wilcoxon'),
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3 changes: 2 additions & 1 deletion statannotations/stats/test.py
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Expand Up @@ -7,7 +7,8 @@
from statannotations.stats.StatResult import StatResult
from statannotations.stats.StatTest import StatTest

IMPLEMENTED_TESTS = ['t-test_ind', 't-test_welch', 't-test_paired',
IMPLEMENTED_TESTS = ['t-test_ind', 't-test_welch',
't-test_paired', 't-test_paired-gt', 't-test_paired-ls',
Comment on lines +10 to +11
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@trevismd trevismd Oct 18, 2022

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Suggested change
IMPLEMENTED_TESTS = ['t-test_ind', 't-test_welch',
't-test_paired', 't-test_paired-gt', 't-test_paired-ls',
IMPLEMENTED_TESTS = ['t-test_ind', 't-test_welch',
't-test_paired', 't-test_paired-gt', 't-test_paired-ls',

'Mann-Whitney', 'Mann-Whitney-gt', 'Mann-Whitney-ls',
'Levene', 'Wilcoxon', 'Kruskal', 'Brunner-Munzel']

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28 changes: 28 additions & 0 deletions tests/test_stattest.py
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Expand Up @@ -37,6 +37,34 @@ def test_short_name_exists(self):
test = StatTest.from_library("Mann-Whitney")
self.assertEqual("M.W.W.", test.short_name)

def test_ttest_ind(self):
test = StatTest(stats.ttest_ind, 't-test independent samples', 't-test_ind', 't')
res1 = test(self.x, self.y)
test2 = StatTest.from_library("t-test_ind")
res2 = test2(self.x, self.y)
self.assertEqual(res1.pvalue, res2.pvalue)

def test_ttest_rel(self):
test = StatTest(stats.ttest_ind, 't-test paired samples', 't-test_rel', 't', alternative="two-sided")
res1 = test(self.x, self.y)
test2 = StatTest.from_library("t-test_paired")
res2 = test2(self.x, self.y)
self.assertEqual(res1.pvalue, res2.pvalue)

def test_ttest_rel_ls(self):
test = StatTest(stats.ttest_rel, 't-test paired samples', 't-test_rel', 't', alternative="less")
res1 = test(self.x, self.y)
test2 = StatTest.from_library("t-test_paired-ls")
res2 = test2(self.x, self.y)
self.assertEqual(res1.pvalue, res2.pvalue)

def test_ttest_rel_gt(self):
test = StatTest(stats.ttest_rel, 't-test paired samples', 't-test_rel', 't', alternative="greater")
res1 = test(self.x, self.y)
test2 = StatTest.from_library("t-test_paired-gt")
res2 = test2(self.x, self.y)
self.assertEqual(res1.pvalue, res2.pvalue)

def test_wilcoxon_legacy_set_wilcox(self):
test = StatTest(wilcoxon, "Wilcoxon (legacy)", "Wilcox (L)")
res1 = test(self.x, self.y, zero_method="wilcox")
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