AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

History of AFNI updates  

Previous Message Next Message
Message List New Topic Print View
|
ptaylor
May 19, 2020 11:44AM
This command would take a mask of an ROI_MASK and a correlation value dataset CORR_DSET, and make a new dset NEW that is the intersection of
+ where the correlation values in CORR_DSET lie within [0.5, 0.6], and
+ where the ROI is: 
3dcalc \
   -a ROI_MASK \
   -b CORR_DSET \
   -expr "step(a)*within(b,0.5,0.6)" \
   -prefix NEW

If your ROI is located in a map of lots of ROIs, you could select it by its numerical index IDX or attached label LAB (if it has one) with: 
3dcalc \
   -a ROI_MAP"<IDX>" \
   -b CORR_DSET \
   -expr "step(a)*within(b,0.5,0.6)" \
   -prefix NEW
or 
3dcalc \
   -a ROI_MAP"<LAB>" \
   -b CORR_DSET \
   -expr "step(a)*within(b,0.5,0.6)" \
   -prefix NEW

You can make multiple new dsets for different bands.

You can overlay the NEW dset on your other dsets to make sure that has gone right.

--pt
Reply Quote
RSS
Subject Author Posted

clusters based on correlations

Ana Navarro Cebrian May 19, 2020 09:14AM

Re: clusters based on correlations

gang May 19, 2020 10:25AM

Re: clusters based on correlations

ptaylor May 19, 2020 11:10AM

Re: clusters based on correlations

Ana Navarro Cebrian May 19, 2020 11:21AM

Re: clusters based on correlations

ptaylor May 19, 2020 11:44AM