cluster statistic on one sample

[Ali Mazaheri]

Dearest Floris,

Why not just create a zero matrices with a 14 x 275 dimension
 and do a dependent samples test between
your regresion weights and the zero matrices ?



Hope this helps !


best

Ali



----- Original Message -----
From: Floris de Lange <florisdelange at GMAIL.COM>
Date: Friday, October 17, 2008 4:44 pm
Subject: [FIELDTRIP] cluster statistic on one sample

> Dear Fieldtrippers,
>
> I have a question about statistical analysis on the sensor level.
> I would like to make use of the cluster size thresholding of the
> clusterrand routine in Fieldtrip. Unfortunately, in the current
> wrapper, it seems there is no option for a one-sample T-test? There is
> an activation-baseline test, and a (in)dependent samples test between
> two conditions, but what I want to do is simply test whether a 14
> (subjects) x 275 (channels) matrix is different from zero, taking into
> account the spatial relations between adjacent sensors. (The data
> points are regression weights from a multiple-regression analysis, so
> there's no easy way to split it into two parts.)
> I assume this should be easy to tweak, but I couldn't come up with any
> smart ideas how to do it.
> Anyone any ideas?
>
> Thanks in advance!
>
> Floris
>
> ----------------------------------
> The aim of this list is to facilitate the discussion between users
> of the FieldTrip  toolbox, to share experiences and to discuss new
> ideas for MEG and EEG analysis. See also
> http://listserv.surfnet.nl/archives/fieldtrip.html and
> http://www.ru.nl/fcdonders/fieldtrip.
>

----------------------------------
The aim of this list is to facilitate the discussion between users of the FieldTrip  toolbox, to share experiences and to discuss new ideas for MEG and EEG analysis. See also http://listserv.surfnet.nl/archives/fieldtrip.html and http://www.ru.nl/fcdonders/fieldtrip.