Stata:从rankum测试中捕获p值

时间:2014-05-29 16:00:31

标签: stata

运行return list, all测试后运行ranksum时,计数和z分数可用,但不是p值。有什么方法可以捡到它吗?

clear
input eventtime prefflag winner stakechange
1   1   1   10
1   2   1   5
2   1   0   50
2   2   0   31
2   1   1   51
2   2   1   20
1   1   0   10
2   2   1   10
2   1   0   5
3   2   0   8
4   2   0   8
5   2   0   8
5   2   1   8
3   1   1   8
4   1   1   8
5   1   1   8
5   1   1   8
end

bysort eventtime winner: tabstat stakechange, stat(mean median n) columns(statistics)



ranksum stakechange if inlist(eventtime, 1, 2) & inlist(winner, 0, .), by (eventtime) 
return list, all

1 个答案:

答案 0 :(得分:4)

尝试在ranksum之后计算它:

scalar pval = 2 * normprob(-abs(r(z)))
display pval

答案是@NickCox: http://www.stata.com/statalist/archive/2004-12/msg00622.html

Statalist archive是宝贵的资源。