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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d.r.alkire
November 26, 2017 10:51AM
Hello,

I'm trying to run a between-group analysis with two groups and two continuous covariates. I'd like to use the same center for the covariates but different slopes, but when I specify this (-covariates_model center=same slope=different) I get this error:

Error in lop$covData * lop$xMat[, 2, drop = F] : non-conformable arrays
Calls: process.MEMA.opts -> cbind

The program runs fine when I leave out the -covariates_model option (which I assume defaults to same center and same slope?). So it doesn't seem to be a problem with any other aspect of my code. Am I leaving something out, e.g. some further specification because there are two covariates?

This is what my covariates file looks like:

Subj Age meanFD
RED_CAT_107 12.64 0.14256525
RED_CAT_108 11.48 0.2176973

....etc (including subjects from both groups)
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Subject Author Posted

3dMEMA error

d.r.alkire November 26, 2017 10:51AM

Re: 3dMEMA error

gang November 27, 2017 03:23PM

Re: 3dMEMA error

d.r.alkire November 27, 2017 08:31PM