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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Phil Burton
June 17, 2014 05:02PM
I have polar angle data only (no eccentricity), and I'm trying to run @RetinoProc. My TR is 1.5 seconds, and this appears to be an issue for some reason.

The 3dRetinoPhase stage is where the problem occurs:

3dRetinoPhase -ccw ccw.rh.niml.dset -clw clw.rh.niml.dset -Tpol 24 -nwedges 1 -pre_stim 6 -phase_estimate FFT -prefix s1008-3.rh
** ERROR: Frequency indices 1116274688 and/or 68 outside max of 1
** ERROR: Failed to set bins.
Is your dataset's TR of 1.500000 sec valid?
++ Warning: 141898 bad floats computed in MAKER_4D_to_typed_fbuc
++ Output dataset ./s1008-3.rh.pol+.niml.dset
** ERROR: Frequency indices 1116274688 and/or 68 outside max of 1
** ERROR: Failed to set bins.
Is your dataset's TR of 1.500000 sec valid?
++ Warning: 141898 bad floats computed in MAKER_4D_to_typed_fbuc
++ Output dataset ./s1008-3.rh.pol-.niml.dset
++ Output dataset ./s1008-3.rh.pol.field.niml.dset

If I change the TR from 1.5 to 2 with 3drefit and adjust the -period_pol accordingly (from 24 to 32 seconds), it runs without complaining and gives me a usable Max.PwR subbrick, whereas MaxPwR can't be used to threshold because nothing survives a value greater than 0 when I keep the TR at 1.5.

Is there a reason why 3dRetinoPhase wouldn't like a 1.5 second TR, or is there a different problem that I'm missing?

Phil
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Subject Author Posted

@RetinoProc with polar angle only, 1.5 second TR

Phil Burton June 17, 2014 05:02PM

Re: @RetinoProc with polar angle only, 1.5 second TR

Phil Burton November 13, 2014 03:03PM

Re: @RetinoProc with polar angle only, 1.5 second TR

ziad November 20, 2014 09:35PM

Re: @RetinoProc with polar angle only, 1.5 second TR

ziad November 20, 2014 10:34PM

Re: @RetinoProc with polar angle only, 1.5 second TR

Phil Burton November 21, 2014 12:49PM

Re: @RetinoProc with polar angle only, 1.5 second TR

Phil Burton November 21, 2014 01:16PM