[FieldTrip] Circular Correlation coefficient

Julian Keil julian.keil at gmail.com
Tue Feb 2 08:57:10 CET 2016


Hi David,

to compute circular statistics (e.g. phase correlations) you need to leave fieldtrip a bit.
Here's the toolbox I usually use: http://www.mathworks.com/matlabcentral/fileexchange/10676-circular-statistics-toolbox--directional-statistics-

As you don't describe why you need circular statistics, it's a bit hard to give a more helpful answer.

Good luck,

Julian

Am 01.02.2016 um 13:40 schrieb David Syloni:

> Dear Fieldtripers,
> 
> I'm trying to apply connectivity analysis with  continuous EEG data.
> 
> I'm using:
> 
> 
> 
> cfg           = [];
> cfg.method    = 'mtmfft';
> cfg.taper     = 'dpss';
> cfg.output    = 'fourier';
> cfg.tapsmofrq = 4;
> cfg.width=2;
> cfg.foilim     = [0 250];
> cfg.keeptrials = 'yes';
> freq          = ft_freqanalysis(cfg, data_no_artifacts);
> 
> 
> 
> 
> cfg           = [];
> cfg.method    = 'plv';
> 'mtmfft'
> cfg.foilim     = [8 12];
> cfg.bandwidth=5;
> cfg.tapsmofrq  = 4;
> cfg.keeptrials = 'yes';
> cfg.output    = 'powandcsd';
> cfg.channelcmb       = c;
> coh           = ft_connectivityanalysis(cfg, freq);
> 
> Right now I should calculate Circular Correlation  and I'm stuck with it.
> 
> I would very appreciate your help!
> 
> Thanks in advance,
> 
> David
> _______________________________________________
> fieldtrip mailing list
> fieldtrip at donders.ru.nl
> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip

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