python中p-value的实现？很多新手对此不是很清楚，为了帮助大家解决这个难题，下面小编将为大家详细讲解，有这方面需求的人可以来学习下，希望你能有所收获。
案例：
tt = (sm-m)/np.sqrt(sv/float(n)) # t-statistic for mean pval = stats.t.sf(np.abs(tt), n-1)*2 # two-sided pvalue = Prob(abs(t)>tt) print 't-statistic = %6.3f pvalue = %6.4f' % (tt, pval) t-statistic = 0.391 pvalue = 0.6955
可执行代码
# coding: utf-8
from __future__ import division
import numpy as np
from scipy import stats
means = [0.0539, 4,8,3,6,9,1]
stds = [5,4,8,3,6,7,9]
mu = [0, 4.1, 7, 2, 5, 8, 0]
n = 20
output = []
for sm, std, m in zip(means, stds, mu):
# print("value:", sm, std)
tt = (sm-m)/(std/np.sqrt(float(n))) # t-statistic for mean
pval = stats.t.sf(np.abs(tt), n-1)*2 # two-sided pvalue = Prob(abs(t)>tt)
# print('t-statistic = %6.3f pvalue = %6.4f' % (tt, pval))
output.append(format(pval))
print("\t".join(output))看完上述内容是否对您有帮助呢？如果还想对相关知识有进一步的了解或阅读更多相关文章，请关注创新互联行业资讯频道，感谢您对创新互联的支持。
