[FieldTrip] Permutation test

[Zhen Ni]

Hello,
My name is Zhen Ni. I'm a senior research fellow working at the National
Institutes of Health.
I'm using FieldTrip (version 20200423) to perform a cluster-based
permutation test. My script is largely based on the example you showed on
the FieldTrip webpage. The script stopped after a while with a technical
problem. I copied the error message below.
I also tried following your instruction and used the dataset you uploaded
on the webpage. The same error message comes out. I wonder if you may take
a look at my codes and help me out.

Many thanks.
Zhen



Invalid MEX-file
'/Users/nz/Documents/MATLAB/external/spm8/spm_bwlabel.mexmaci64':
dlopen(/Users/nz/Documents/MATLAB/external/spm8/spm_bwlabel.mexmaci64, 6):
Library
not loaded: @loader_path/libmex.dylib
  Referenced from:
/Users/nz/Documents/MATLAB/external/spm8/spm_bwlabel.mexmaci64
  Reason: image not found

Error in findcluster (line 87)
    [labelmat(spatdimlev, :, :), num] =
spm_bwlabel(double(reshape(onoff(spatdimlev,
    :, :), nfreq, ntime)), 6); % the previous code contained a '4' for input

Error in clusterstat (line 202)
      posclusobs = findcluster(reshape(postailobs,
      [cfg.dim,1]),channeighbstructmat,cfg.minnbchan);

Error in ft_statistics_montecarlo (line 353)
  [stat, cfg] = clusterstat(cfg, statrand, statobs);

Error in ft_timelockstatistics (line 184)
  [stat, cfg] = statmethod(cfg, dat, design);
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