[FieldTrip] doublecheck significance cfg.alpha and cfg.clusteralpha

Roemer van der Meij r.vandermeij at donders.ru.nl
Fri Jan 28 14:32:56 CET 2011

> This is not correct. Actually, cfg.alpha is superfluous. In the output,
> every cluster has a p-value assigned to it, and if there is one or more
> cluster with a p-value less than your critical alpha-level (mostly 0.05 for
> a one-sided and 0.025 for a two-sided test), then you have found a
> significant difference.
It does affect the output.mask field, which can be used for plotting. 
This will have a 0 for a time-frequency-channel triplet if its p-value 
is above cfg.alpha, and a 1 when it is below it. Other than that, it is 


Roemer van der Meij M.Sc.
PhD student
Donders Institute for Brain, Cognition and Behaviour
Centre for Cognition
P.O. Box 9104
6500 HE Nijmegen
The Netherlands
Tel: +31(0)24 3655932
E-mail: r.vandermeij at donders.ru.nl
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.science.ru.nl/pipermail/fieldtrip/attachments/20110128/a39b29f1/attachment-0002.html>

More information about the fieldtrip mailing list