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Ingy döt Net 2013-04-10 23:57:08 -07:00
parent 47bf37c096
commit b83f433714
12433 changed files with 156208 additions and 123 deletions
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20
Task/Permutation-test/Python/permutation-test-1.py Normal file
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from itertools import combinations as comb
def statistic(ab, a):
sumab, suma = sum(ab), sum(a)
return ( suma / len(a) -
(sumab -suma) / (len(ab) - len(a)) )
def permutationTest(a, b):
ab = a + b
Tobs = statistic(ab, a)
under = 0
for count, perm in enumerate(comb(ab, len(a)), 1):
if statistic(ab, perm) <= Tobs:
under += 1
return under * 100. / count
treatmentGroup = [85, 88, 75, 66, 25, 29, 83, 39, 97]
controlGroup = [68, 41, 10, 49, 16, 65, 32, 92, 28, 98]
under = permutationTest(treatmentGroup, controlGroup)
print("under=%.2f%%, over=%.2f%%" % (under, 100. - under))

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Task/Permutation-test/Python/permutation-test-2.py Normal file
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from itertools import combinations as comb
def permutationTest(a, b):
ab = a + b
Tobs = sum(a)
under = 0
for count, perm in enumerate(comb(ab, len(a)), 1):
if sum(perm) <= Tobs:
under += 1
return under * 100. / count
treatmentGroup = [85, 88, 75, 66, 25, 29, 83, 39, 97]
controlGroup = [68, 41, 10, 49, 16, 65, 32, 92, 28, 98]
under = permutationTest(treatmentGroup, controlGroup)
print("under=%.2f%%, over=%.2f%%" % (under, 100. - under))