[FieldTrip] 'non equidistant frequency bins are not supported for method granger'

[Jae Moon]

Hi everyone,

I am getting the following error:

the call to "ft_freqanalysis" took 2 seconds and required the additional allocation of an estimated 1 MB
the call to "ft_selectdata" took 0 seconds and required the additional allocation of an estimated 0 MB
Error using ft_connectivityanalysis (line 317)
non equidistant frequency bins are not supported for method granger

I do not understand why this is happening when I am applying an equidistant foi (1:60)

My input is:

freq = [];
freq.freqcfg = [];
freq.freqcfg.method = 'mtmconvol';
freq.freqcfg.taper = 'hanning';
freq.freqcfg.output = 'pow';
% freq.freqcfg.keeptrials= 'yes';
freq.freqcfg.foi = [1:60];
freq.freqcfg.pad='nextpow2';
freq.freqcfg.toi = [-0.2:0.01:0.9];
freq.freqcfg.t_ftimwin = ones(size(freq.freqcfg.foi))*0.1;

freq13 = ft_freqanalysis(freq.freqcfg, data13);

grangercfg=[];
grangercfg.method = 'granger';
grangercfg.channel={'CSblue','SPblue'};
grangercfg.feedback='text';

gdata.g13_mrc = ft_connectivityanalysis(grangercfg, freq13);

Your help is very much appreciated.

Best,

Jae
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