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
May 27, 2009 01:44PM
Rick,

Yes, handling a regressor with all 0's is more a practical issue of scripting and convenience than a statistical concern.

> Michael may be referring to the case of subjects not having data
> at all for some regressors, so an ANOVA might not be appropriate.
> Gang, I guess you still suggest 3dLME.R for that case, yes?

Well, I still prefer 3dMEMA if possible. Admittedly 3dANOVAx/3dLME is advantageous in the sense that you have all the tests done in one shot. However, that convenience aside, most of those tests essentially boil down to t-tests, which can be easily taken care of with 3dMEMA in a piecemeal fashion.

Gang
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Subject Author Posted

3ddeconvolve regressors

michael May 27, 2009 10:28AM

Re: 3ddeconvolve regressors

rick reynolds May 27, 2009 10:49AM

Re: 3ddeconvolve regressors

Gang Chen May 27, 2009 11:05AM

Re: 3ddeconvolve regressors

rick reynolds May 27, 2009 12:39PM

Re: 3ddeconvolve regressors

Gang Chen May 27, 2009 01:44PM