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  

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September 10, 2021 09:57AM
Cheers AFNI users!

I am trying to produce a map of voxels ranked by percentile of local intensity using 3dLocalstat. While the distribution of 'hot spots' in the output stats map look correct, the output voxel values are not in terms of percentile (e.g. voxel corresponding to 50th percentile is not 0.5). Am I forgetting to set an additional modifying flag? Any help is appreciated!

3dLocalstat -nbhd 'SPHERE(3)' -stat perc:1:0:0.1 -mask ma.dilate2_3.nii -prefix t2_perc3.nii sub-${subject}_T2w.nii.gz
Subject Author Posted

3dLocalstat percentile output

jbarredo September 10, 2021 09:57AM

Re: 3dLocalstat percentile output

Daniel Glen September 10, 2021 12:15PM

Re: 3dLocalstat percentile output

jbarredo September 15, 2021 08:30AM