Re: [Freesurfer] "smooth sulc on only part of the surface" one more time

2009-06-04 Thread Rudolph Pienaar
Zhangyuanchao wrote: I would like to mask off the negative values (as the lh.sulc file has both positive and negative value). Another way to filter the sulc is: $>mris_calc -o lh.sulc.pos lh.sulc gte 0 which filters 'lh.sulc' and only lets values that are greater than or equal to 0 through

[Freesurfer] "smooth sulc on only part of the surface" one more time

2009-06-04 Thread Zhangyuanchao
Hi, experts,   I am interested in only the positive sulc  and would like to make group analysis of the postive sulc values. Hence I would like to mask off the negative values (as the lh.sulc file has both positive and negative value). Before making group analysis, I have to resample and smooth t