Statistics on a pre-defined cluster

[Robert Oostenveld]

Hi Jess,

You can use avgoverchan, avgovertime and avgoverfreq configuration
options in freqstatistics. However, that does not allow you to make a
cluster with "ragged edges", i.e. one channel only being included for
part of the time in which the effect is significant and not for
another part. If you want to do that, then you will have to average
over the channel-time-frequency points in the cluster by hand.

best regards,
Robert


On 8 Jul 2008, at 2:08, Jess R. Kerlin wrote:

> Hello all,
>
> I'm running an 128 electrode EEG experiment and  I'd like to
> constrain my time-locked statistical analysis of  Condition B to
> the significant electrode/time clusters of independent Condition A.
> I know I can use cfg.elec to constrain the electrode locations
> before running timelockstatistics, but I don't know how to
> constrain by a pre-defined elec/time cluster from separate data.
> All suggestions appreciated.
>
> Cheers,
>
> Jess Kerlin
>
>
>
> ----------------------------------
> 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.