Hi Jeff
I guess you would use the "Yes - read images into data matrix" option
in ImCalc, select the images and enter std(X) as the expression. For
the z-score you will need to play a bit with the repmat function.
Best
Torben
Den 16/03/2009 kl. 18.18 skrev Jeff Browndyke:
> Does anyone have a formula for imCalc or a batch script to generate
> a population standard deviation image (i.e., sigma)? I'd like to
> generate such an image for a group of log-transformed, Jacobians
> determinants for eventual entry into a standard z-score conversion
> formula.
>
> Thanks,
> Jeff Browndyke
>
> ----------------------
> Duke Univ. Med. Center
> Dept. of Psychiatry
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