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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rick reynolds
November 05, 2019 09:10AM
Sorry for being slow, Jun.

You could look at the motion files. etc., but you can see them in the X-matrix, X.xmat.1D.

In that file, different types of regressors are assigned to different groups. Group -1 includes the polort terms (polynomial baseline regressors), group 0 includes all other regressors of no interest (where you put them into the baseline model via 3dDeconvolve's -stim_base option), and positive groups are for regressors of interest, from 1 on up (each class gets a different group number).

To see these groups, you can open X.xmat.1D in an editor, or use 1d_tool.py to show them. For example, list all groups, or list only baseline groups (-1 and 0): 

1d_tool.py -show_group_labels -infile X.xmat.1D
1d_tool.py -select_groups -1 0 -show_group_labels -infile X.xmat.1D

Does that to what you like?

- rick
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Proc py motion regressor

JW October 31, 2019 11:14AM

Re: Proc py motion regressor

rick reynolds November 05, 2019 09:10AM