Hi,

Take a look at example 2 in

require(exactRankTests)
?perm.test

If that does not help at all, could you please let us know what you did and
how?

HTH,
Jorge


On Sun, Sep 18, 2011 at 7:29 PM, song_gpqg <> wrote:

> Hi!
> I am doing a two sample permutation test and trying to find confidence
> interval. perm.test() seems can do that but when the vector contains
> negative numbers it occurs an error. And for perm.test(x,y), elements in x
> can't be more than in y. I am wondering how I can fix these two problems?
> Thanks a lot.
>
>
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