On 27 October 2017 at 13:19, Pegah Kassraian Fard <pega...@gmail.com> wrote:
> I have a very basic question regarding the provided t-test ( > http://www.pymvpa.org/generated/cmd_ttest.html) which I want to apply to > my searchlight results: > Why exactly is there no parameter for the alpha value? > Although I did not implement this function myself, my best guess is that it would have been more work to implement. However, the output can be set to represent p-values, so it should be trivial to identify (mask) voxels that pass (or do not pass) a specific alpha level. > I guess accordingly, that this t-test is not corrected for multiple > comparisons? > As far is I can see, indeed, it does not. For multiple comparisons, consider: http://www.pymvpa.org/generated/mvpa2.algorithms.group_clusterthr.GroupClusterThreshold.html
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