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

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Daniel Glen
April 19, 2015 05:24PM
I don't think either Dimon or to3d will flip every other volume, but you can do this with these commands. The 3dcalc command uses the flipped volume in every other TR. If you want the reverse, swap the a and the b in the expression. You can delete the AP flipped dataset.

3dLRflip -AP -prefix APflipped_all -overwrite epi_r1+orig.

3dcalc -a epi_r1+orig -b APflipped_all+orig. \
-expr 'a*mod(l,2) + b*not(mod(l,2))' \
-prefix epi_halfflipped -overwrite
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Subject Author Posted

Alternating Phase-encoding direction help

Andrew_Lynn April 17, 2015 07:20PM

Re: Alternating Phase-encoding direction help

Daniel Glen April 19, 2015 05:24PM

Re: Alternating Phase-encoding direction help

Andrew_Lynn June 16, 2015 08:07PM

Re: Alternating Phase-encoding direction help

Isaac Schwabacher June 17, 2015 04:27PM