dear All,

I would like to know if I am running the 

mri_glmfit-sim \
--glmdir Group_Analysis.glmdir \
--sim perm 10000 3 permcsd \
--sim-sign neg \
--cwpvalthresh .05

and I want to change the --sim-sign from neg to positive if I need to run again the whole simulation or I can just run:

mri_glmfit-sim --glmdir Group_Analysis.glmdir \ --no-sim --sim-sign pos or how exactly to edit the mri_glmfit in this case?

Also if I need to add one more subject do I need to re-run the whole simulation or for multiple comparison I can just use the --no-sim option?

Thank you very much!

Antonella