Dear Sirs/Madams
How to access information in gamma.mgh and gammavar.mgh? Which command should I use? Since it not explained in the tutorial. I want to use it to calculate effective population size? How large population size is needed to demonstrate a deviation between to population in cortical thickness?
Best regards
Knut J
Hi Knut, you will need the effect size which is gamma/rstd where rstd is the the standard deviation of the noise which is stored in rstd.mgh in the glm directory. doug
On 3/10/12 10:35 AM, Knut J Bjuland wrote:
Dear Sirs/Madams
How to access information in gamma.mgh and gammavar.mgh? Which command should I use? Since it not explained in the tutorial. I want to use it to calculate effective population size? How large population size is needed to demonstrate a deviation between to population in cortical thickness?
Best regards
Knut J _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
freesurfer@nmr.mgh.harvard.edu
-
Douglas Greve -
Knut J Bjuland