Hello,
I'm not sure exactly what you're looking for, but the 'cluster' tool ( described in http://www.fmrib.ox.ac.uk/analysis/techrep/tr00df1/tr00df1/ ) can calculate p-values via cluster thresholding. Cluster-thresholding is also offered by randomise, our nonparametric statistical tool.
Many Regards
Matthew
> Hi,
>
> I have a thresholding question:
> Is it possible to estimate the false-positive rate corresponding to a given uncorrected p-value and minimum cluster size? Or, similarly, to estimate which minimum cluster size (number of voxels) is required to obtain a certain false positive rate (eg, .01) for a given uncorrected p-value (eg .001)?
> AFNI and BrainVoyager have tools to calculate this, but I couldn’t find a way to do this in FSL. Does anyone know whether/how something like this is possible in FSL?
>
> Thanks!
>
> Marieke
>
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