Thank you, Doug. Do you have more examples of different designs? Could anyone answer the rest of my questions? Thank you again, Xin
________________________________ From: Doug Greve [mailto:[EMAIL PROTECTED] Sent: Fri 7/20/2007 2:45 PM To: Wang, Xin Cc: freesurfer Subject: Re: [Freesurfer] statistical designs Check out http://surfer.nmr.mgh.harvard.edu/docs/ftp/pub/docs/freesurfer.groupanalysis.pdf for some answers. For paired-t, you can specify --paired-diff to mris_preproc Wang, Xin wrote: Hello, group I want to learn more about designs of the general linear models for different statistical tests, such as paired T, ANOVA, and correlation tests. Could anybody suggest some examples of the designs for each model? I am facing a few problems of correlation analysis. If I want to do the within group correlation analysis, how can I do it without groups (or classes) as a regressor (if I only have one class and assign a 0 for the group in the contrast, does it work)? How can I specify the pearson's or Spearman's correlation in the analysis? How to know I have enough subjects for this correlation analysis? Thank you in advance, XIn Wang ________________________________ _______________________________________________ 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
