clusterrandomizationanalysis on coherence data

[Eric Maris]

Hi Lilla,


> I would like to evaluate my coherence results with the cluster
randomization
> statistics in Fieldtrip. My data files consisting of powerspctrm and
> cohspctrm fields, as well (the time-frequency analysis of coherence was
> calculated with fieldtrip). Therefore, it is not clear for me where or how
> can I specify for the clusterrandanalysis function that I am interested in
> the statistics of the coherence spectra and not the power spectra. Or do I
> have to delete the powspctrm field to make it sure that the
> clusterrandanalysis function would work on the coherence?
> And in general, is this the right way of the statistical analysis of my
> coherence data (which is infact, went through a planar transformation) or
> should I use another statistics?


Statistical testing of coherence differences using cluster-based
non-parametric tests are not yet implemented in Fieldtrip. This is one of
functionalities that will be added in the near future (i.e., when I have
graded the 400 retake-exams of my undergraduate methodology course (-;).


Greetings,


Eric Maris