Dear Lucas,
AFAIK, you cannot convert a z-map to FWE-p-map; but if your goal is to
threshold your z-map with FWE, then you can calculate the z(p=0.05 FWE)
threshold with ptoz command with using the -g switch.
Bests,
Auer, Tibor M.D. Ph.D.
Biomedizinische NMR Forschungs GmbH
am Max-Planck Institut für Biophysikalische Chemie
Am Fassberg 11
37077 Göttingen
Germany
Phone/Work: +49-(0)551-201-1725
Phone/Home: +49-(0)551-387-0076
Mobile: +49-(0)176-8012-7921
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2010.09.14. 12:32 keltezéssel, Lucas Eggert írta:
> Dear Experts!
>
> How can I determine the FWE-corrected p-Value for a given Z-value?
>
> I tried
>
> fslmaths zstat1.nii.gz -cpval fwe-corrected.nii.gz
>
> ... but that results in an image with only values of 1 in every voxel.
>
> Best wishes,
> -Lucas
>
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