案例:
tt)
print 't-statistic = %6.3f pvalue = %6.4f' % (tt,pval)
t-statistic = 0.391 pvalue = 0.6955
链接:
https://stackoverflow.com/questions/17559897/python-p-value-from-t-statistic
http://docs.scipy.org/doc/scipy/reference/tutorial/stats.html
可执行代码
means = [0.0539,4,8,3,6,9,1]
stds = [5,7,9]
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))