Hi,
I am using 3dcalc to multiply EPI data by an ROI mask via the following script:
3dcalc -fscale \
-a ${study}.${subject}.${cond}.${diff}.ROI.GB4.iresp+orig \
-b ${study}.${subject}.${ROI}.resam+orig \
-expr '(a*b)' \
-prefix ${study}.${subject}.${cond}.${diff}.ROI.${region}.iresp+orig
The issue that I'm having is that the output dataset consists of EPI data for all 14 ROIs included in the mask and I would like a separate dataset for each ROI drawn. Is there a way that I can restrict the voxels from dataset b (my ROI mask) so that only the mask values for an individual ROI will be used? For example in 3dmaskave there is the option mrange a b... is there a similar option I can use for 3dcalc?
Thanks,
Kristen
