Hi,


Thanks a lot for your help!!!
Sorry it took me quite a bit of time to re-run my test.
So just in case people are curious. My mistake was that I was running a ttest with fdr correction instead of ftest.

Ftest is taking even longer to compute. But I am getting significant results with a minimum fvalue (so the nbs.NBS.con_mat of the significant links) of 10^-4. It is really close of zero but it is not negative anymore!

Thanks very much!

Cc