The values in F.mgh are F dist under the null. But you should only have
an F there if it is a multivariate contrast (ie, the contrast matrix has
more than one row).
doug
Don Hagler wrote:
Are you sure that it is saving t-values in F.mgh and not F-stats?
From: Glenn Lawyer <[EMAIL PROTECTED]>
To: freesurfer@nmr.mgh.harvard.edu
Subject: [Freesurfer] t-value saved values
Date: Thu, 20 Sep 2007 15:00:44 +0200
Hi,
I asked about this last week, and had a nice discussion with Doug,
but somehow in that we never got the answer to my original question.
When FreeSurfer saves t-values (in F.mgh), what is it actually
saving? The numbers in the file do not have a t-distribution (even
when the source data for the glm is random noise). Is a transform
applied to the t-values before the write, as is done with the p-values?
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
_________________________________________________________________
A place for moms to take a break!
http://www.reallivemoms.com?ocid=TXT_TAGHM&loc=us
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
--
Douglas N. Greve, Ph.D.
MGH-NMR Center
[EMAIL PROTECTED]
Phone Number: 617-724-2358
Fax: 617-726-7422
In order to help us help you, please follow the steps in:
surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
