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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bob cox
November 10, 2008 09:35PM
You have a list of 6 column pairs (69 and 70, and so on) that are marked as being "nearly collinear". This means that they are almost exactly the same (except possibly for a scale factor). You need to figure out why these columns in the matrix are almost the same -- are they stimuli with almost identical timing? Or are they motion regressors that are almost identical?

You have a serious problem -- the Matrix inverse average error indicates that your results are not reliable.

Without more information, we cannot diagnose your problem any further.
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Subject Author Posted

about GOFORIT

layne November 10, 2008 09:25PM

Re: about GOFORIT

bob cox November 10, 2008 09:35PM

Re: about GOFORIT

layne November 11, 2008 02:41AM