[FieldTrip] between-subject cluster-stats wont average over specified frequency

[Julian Keil]

Dear George,

You have a typo in the cfg at cfg.frequency.

Hope this helps,

Julian

Am Mittwoch, 26. Oktober 2016 schrieb George McKenzie Opie :

> Hi all,
>
>
> Im trying to run some between-subject cluster-based analyses on some
> time-frequency data, but am having some issues getting the analysis to
> average over a specified frequency range. For some reason this only happens
> with between-subject comparisons and not within-subject. My cfg structure
> is shown below. D1 and D2 are grandaverage data from two groups calculated
> using ft_freqgrandaverage. When I call ft_freqstatistics with this cfg, it
> averages over all frequencies (5 - 45 Hz), instead of the specified
> frequency range (31 - 45 Hz). Any help would be very much appreciated.
>
>
> cfg = [];
> cfg.channel     = {'all'};
> cfg.minnbchan        = 2;
> cfg.clusteralpha = 0.01;
> cfg.clusterstatistic = 'maxsum';
> cfg.alpha       = 0.05;
> cfg.latency     = [0.025, 0.220];
> cfg.avgoverfreq = 'yes';
> cfg.frequnecy = [31 45];
> cfg.avgovertime = 'yes';
> cfg.avgoverchan = 'no';
> cfg.statistic   = 'indepsamplesT';
> cfg.numrandomization = 2000;
> cfg.correctm    = 'cluster';
> cfg.method      = 'montecarlo';
> cfg.tail             = 0;
> cfg.clustertail      = 0;
> cfg.neighbours  = neighbours;
> cfg.parameter   = 'powspctrm';
>
> design = zeros(1,size(D1.powspctrm,1) + size(D2.powspctrm,1));
> design(1,1:size(D1.powspctrm,1)) = 1;
> design(1,(size(D1.powspctrm,1)+1):(size(D1.powspctrm,1) +
> size(D2.powspctrm,1)))= 2;
>
> cfg.design = design;
> cfg.ivar  = 1;
>
> [stat] = ft_freqstatistics(cfg, D1, D2);
>
>
> kind regards,
>
>
> George Opie
>
> ARC Research Associate
> Discipline of Physiology
> School of Medicine
> The University of Adelaide, AUSTRALIA 5005
> Ph    : +61 8 8313 4157
> Fax   : +61 8 8303 5384
> e-mail: george.opie at adelaide.edu.au
> <javascript:_e(%7B%7D,'cvml','george.opie at adelaide.edu.au');>
>
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