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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Gang Chen
October 21, 2003 05:55PM
Hi Jim,

As you've realized, the two regressors that were generated with waver stop around the last TR where the signal returns to zero during the last event in CRPwht.1D and CRPgrn.1D. Therefore the time course of the two regressors usually don't reach to the end of the whole dataset.

To get around this problem, you can stretch the length of the two regressors by enforcing/adding them with more 0's with an option '-numout ##' in waver, where ## is the number of TR's in your dataset:

waver -GAM -dt 2.0 -peak 100 -numout ## -tstim `cat CRPwht.1D` > whtpress2.1D
waver -GAM -dt 2.0 -peak 100 -numout ## -tstim `cat CRPgrn.1D` > grnpress2.1D

Hope this would fix the problem,
Gang
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Subject Author Posted

3dDeconvole error with -tstim generated .1D vector

Jim Bjork October 21, 2003 05:40PM

Re: 3dDeconvole error with -tstim generated .1D vector

Gang Chen October 21, 2003 05:55PM

Re: 3dDeconvolve error with -tstim generated .1D vector

Jim Bjork October 22, 2003 02:15PM

Thank you for the suggestions!

Gang Chen October 22, 2003 02:32PM

Re: 3dDeconvole error with -tstim generated .1D vector

bob cox October 22, 2003 05:19PM