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    Metadata details:
    filename: test_example_dipolefit_somatosensory20220113.m
    path of file: ./repos/fieldtrip/test
    
    the code of the file until where you have to start completion: function test_example_dipolefit_somatosensory

% MEM 6gb
% WALLTIME 00:15:00
% DATA public

%
%% Fit a dipole to the tactile ERF after mechanical stimulation
%
%% # Description
%
% The MATLAB script is given first; the figures that this script produces are at the bottom of this page.
%
% The MEG dataset [SubjectBraille.zip](ftp://ftp.fieldtriptoolbox.org/pub/fieldtrip/tutorial/SubjectBraille.zip) is available from our FTP server.
%
%% # MATLAB script
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Tactile Stimulus Dipolefit
%

    
function test_example_dipolefit_somatosensory

% MEM 6gb
% WALLTIME 00:15:00
% DATA public

%
%% Fit a dipole to the tactile ERF after mechanical stimulation
%
%% # Description
%
% The MATLAB script is given first; the figures that this script produces are at the bottom of this page.
%
% The MEG dataset [SubjectBraille.zip](ftp://ftp.fieldtriptoolbox.org/pub/fieldtrip/tutorial/SubjectBraille.zip) is available from our FTP server.
%
%% # MATLAB script
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Tactile Stimulus Dipolefit
%
% In this dataset, mechanical tactile stimuli of 300ms length were applied
% to the right index finger. The tactile stimuli were 5 different patterns
% of which the subject should detect one (deviant: trigger 4). However,
% stimuli were by far too difficult to differentiate, so they can be pooled
% across all of them. There are no button presses or anything else in the
% data. Because stimuli were too difficult there was absolutely no task.
%
% The MEG dataset is available from
%   ftp://ftp.fieldtriptoolbox.org/pub/fieldtrip/tutorial/SubjectBraille.zip

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% determine interesting segments in the data

cfg                     = [];
cfg.dataset             = dccnpath('/home/common/matlab/fieldtrip/data/ftp/test/ctf/SubjectBraille.ds');
cfg.continuous          = 'yes';
cfg.trialdef.eventtype  = 'backpanel trigger';
cfg.trialdef.eventvalue = [4,8];
cfg.trialdef.prestim    = 0.4;
cfg.trialdef.poststim   = 0.6;
cfg = ft_definetrial(cfg);

% remove the first and last 10 trials: they are too close to the edge
% of the file, which causes problems with the 10 seconds filter padding
cfg.trl = cfg.trl(10:(end