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
October 28, 2016 08:51AM
Carolina,

This is what "gltsym 'SYM: +AY -BY' A_B" and "gltsym 'SYM: +AY[0..11] -BY[0..11]' A_B" do:

1) add up all those 12 effect estimates; and
2) compare the sum between the two conditions.

> Since (3) is a linear operation over the 12 estimated tent coefficients(the pair-wise subtraction
> mentioned above), this are the "tent-wise" coefficients for the linear contrast that we want right?

Correct.

> Is there a way to do this directly with REMLfit or should we just use 3dcalc to calculate all our
> "tent-wise" linear contrasts?

Try double square brackets:

"gltsym 'SYM: +AY[[0..11]] -BY[[0..11]]' A_B"

Gang
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Subject Author Posted

"Tent-wise" linear contrasts.

carolina October 27, 2016 12:48PM

Re: "Tent-wise" linear contrasts.

gang October 28, 2016 08:51AM

Re: "Tent-wise" linear contrasts.

carolina October 28, 2016 10:45AM