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eeg_analysis.m
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eeg_analysis.m
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% Metascript to adjust analysis parameters and run through all analysis
% steps using EEGLAB
%
% USAGE:
%
% in serial mode: eeg_analysis(taskType,[numbers of subjects])
% in parallel mode: eeg_analysis(taskType,[numbers of subjects],'method')
%
% 'method': 'submitJob' - submit prprocessing job to cluster
% 'getJob' - retrieve preprocessed job data from cluster
% 'plot' - omit preprocessing and plot processed data
% 'usabledata' - get amount of usable data per subject
% and return vector of subject number
% with usable data above given threshold
% [threshold must be specified as
% argument]
% OUTPUT:
%
% no method: nothing
% 'submitJob: scheduler and job handle
% 'getJob': scheduler and job handle
% 'plot': nothing
% 'usabledata': vector of subject numbers above threshold of usable data
%
% NEEDS:
%
% EEGLAB 13 - A Delorme & S Makeig (2004) EEGLAB: an open source toolbox
% for analysis of single-trial EEG dynamics.
% Journal of Neuroscience Methods 134:9-21
% bv-io - can be installed via EEGLAB extension manager
% eeg_emcp - Andreas Widmann (http://github.com/widmann)
% firfilt 1.6 - Andreas Widmann (http://github.com/widmann)
% eeg_rejdelta - Andreas Widmann (http://github.com/widmann)
% RMAOV1 - Trujillo-Ortiz, A., R. Hernandez-Walls and
% R.A. Trujillo-Perez. (2004). RMAOV1:One-way repeated measures ANOVA. A
% MATLAB file. URL: http://www.mathworks.com/matlabcentral/
% fileexchange/loadFile.do?objectId=5576
%
% Files you need to configure:
% - config.m (central configuration file)
% - triggerlabels.m (configuratiuon of trigger labels)
% - channelInterp.m (configuration of to-be-interpolated channels for given subjects)
%
% Copyright (c) 2014 Martin Reiche, Carl-von-Ossietzky-University Oldenburg
% Author: Martin Reiche, [email protected]
% This program is free software: you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
% This program is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
% You should have received a copy of the GNU General Public License
% along with this program. If not, see <http://www.gnu.org/licenses/>.
% Please define all parameters in config.m
function varargout = eeg_analysis(taskType,subjects,method,threshold)
% Get analysis parameters
analysis = config('parameters','task',taskType);
% save subjects vector in analysis struct
analysis.subjects = subjects;
% Get filter parameters
filtPar = config('filter');
% Load trigger Matrix for current task
trig = config('triggers','task', taskType);
% check input
if analysis.parallel && nargin < 3
error(':: Parallel Mode is required');
elseif nargin > 2
analysis.parallel = 1;
end
%% Add Paths
% get Paths
paths = config('Path','task',taskType,'analysis',analysis,'filt',filtPar);
% add local paths
addpath(paths.funcDir, paths.local.libDir, paths.local.eeglabDir, paths.local.stimFuncDir);
addpath([paths.local.eeglabDir 'functions/popfunc/']);
addpath([paths.local.eeglabDir 'functions/guifunc/']);
addpath([paths.local.eeglabDir 'functions/adminfunc/']);
addpath([paths.local.eeglabDir 'functions/sigprocfunc/']);
addpath([paths.local.eeglabDir 'plugins/bva-io1.5.12/']);
addpath([paths.local.eeglabDir 'plugins/Biosig2.88/']);
addpath([paths.local.eeglabDir 'plugins/Biosig2.88/biosig/doc']);
addpath([paths.local.eeglabDir 'plugins/Biosig2.88/biosig/t250_ArtifactPreProcessingQualityControl']);
addpath([paths.local.eeglabDir 'plugins/Biosig2.88/biosig/t200_FileAccess']);
addpath([paths.local.eeglabDir 'plugins/firfilt1.6/']);
addpath([paths.local.libDir 'sphspline0.2/']);
%% run preprocessing routine
if analysis.preprocess
% evaluate runmode (parallel or serial)
if ~analysis.parallel && nargin < 3
%% serial processing on local machine
% check availabel raw data and configure raw data paths
paths = checkRawData(paths,subjects,taskType);
% initialize cell array for subject erps
subErp = cell(numel(subjects),1);
subErpEqual = cell(numel(subjects),1);
subTrialInd = cell(numel(subjects),1);
corrTrials = cell(numel(subjects),1);
numEvent = cell(numel(subjects),1);
trigNum = cell(numel(subjects),1);
% over all subjects
dur.Start = datestr(now,'ddd mmm DD HH:MM:SS YYYY');
for iSubj = 1:size(subjects,2)
dur.task(iSubj).Start = datestr(now,'ddd mmm DD HH:MM:SS YYYY');
subData = preprocess(taskType,subjects(iSubj),analysis,filtPar,trig,paths);
% combine subject specific results of preprocessing
subErp{iSubj,1} = subData.subErp;
subErpEqual{iSubj,1} = subData.subErpEqual;
subTrialInd{iSubj,1} = subData.subTrialInd;
corrTrials{iSubj,1} = subData.corrTrials;
numEvent{iSubj,1} = subData.numEvent;
rejEpoch(iSubj,:) = subData.rejEpoch;
trialNum{iSubj,1} = subData.trialNum;
rejLog(iSubj) = subData.rejLog;
dur.task(iSubj).End = datestr(now,'ddd mmm DD HH:MM:SS YYYY');
end
dur.End = datestr(now,'ddd mmm DD HH:MM:SS YYYY');
% retrieve configuration settings
analysis = subData.analysis;
paths = subData.paths;
trig = subData.trig;
filtPar = subData.filtPar;
% save preprocessed data
save_erp(subErp,subErpEqual,subTrialInd,corrTrials,numEvent,rejEpoch,trialNum,subjects,paths,trig,dur,analysis,filtPar,rejLog);
% define output arguments
varargout{1} = [];
else
%% parallel processing
% Create scheduler %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% all jobs defined below, will be scheduled by this cluster configuration
sched = findResource('scheduler','configuration',analysis.core);
% set resources for scheduler
if strcmp(paths.cluster,'remote')
set(sched, 'SubmitFcn', cat(1,sched.SubmitFcn,'runtime','0:30:0','memory','6G'));
end
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
switch method
case 'submitJob'
% get list of file dependencies (in main folder)
files = dir([pwd '/*.m']);
fd1 = cell(1,size(files,1));
for iFile = 1:size(files,1)
fd1{iFile} = [pwd '/' files(iFile).name];
end
% and in functions folder
files = dir([paths.funcDir '*.m']);
fd2 = cell(1,size(files,1));
for iFile = 1:size(files,1)
fd2{iFile} = [paths.funcDir files(iFile).name];
end
% combine file dependencies from func and main folder
fd = [fd1 fd2];
% create job object
job = createJob(sched);
% add folder of current Job ID to resDir
paths.resDir = [paths.resDir 'Job' num2str(sched.Jobs(end).ID) '/'];
% create cell array of input argument for each task
inArgs = cell(1,size(subjects,2));
for iTask = 1:size(subjects,2)
inArgs{iTask} = {taskType subjects(iTask),analysis,filtPar,trig,paths};
end
% set file dependencies
set(job,'FileDependencies',fd);
task = createTask(job, @preprocess, 1 ,inArgs);
% add paths dependencies
pd = {paths.rawDir; paths.resDir; paths.behavDir; ...
paths.eeglabDir; paths.libDir; paths.elecSetup;...
paths.stimFuncDir;
[paths.eeglabDir 'functions/popfunc/'];...
[paths.eeglabDir 'functions/guifunc/'];...
[paths.eeglabDir 'functions/adminfunc/'];...
[paths.eeglabDir 'functions/sigprocfunc/'];...
[paths.eeglabDir 'plugins/bva-io1.5.12/'];...
[paths.eeglabDir 'plugins/plugins/Biosig2.88/'];...
[paths.eeglabDir 'plugins/Biosig2.88/biosig/doc'];...
[paths.eeglabDir 'plugins/Biosig2.88/biosig/t250_ArtifactPreProcessingQualityControl'];...
[paths.eeglabDir 'plugins/Biosig2.88/biosig/t200_FileAccess'];...
[paths.eeglabDir 'plugins/firfilt1.6/'];...
[paths.libDir 'sphspline0.2/']};
set(job,'PathDependencies',pd);
% submit the job to the scheduler
submit(job);
% define output arguments
varargout{1} = sched;
varargout{2} = job;
case 'getJob'
job = get(sched,'Jobs');
% specify Job ID
if size(job,1) > 1
job
disp(':: Specify job ID')
id = 0;
while ~ismember(id,1:size(job,1))
id = input('>> ');
if ~ismember(id,1:size(job,1))
disp([':: ' num2str(id) ' is not a valid job ID']);
end
end
job = job(id);
elseif size(job,1) < 1
error(':: There are no jobs for the current scheduler');
end
% get Tasks
task = get(job,'Tasks');
% check task state
allFin = [ ];
for iTask = 1:size(task,1)
if strcmp(task(iTask).State,'finished')
allFin = [allFin 1];
else
allFin = [allFin 0];
end
end
% gather data
if all(allFin) && ~isempty(allFin)
disp(':: All tasks are finished');
task
% initialize cell array for subject erps
subErp = cell(numel(subjects),1);
subErpEqual = cell(numel(subjects),1);
subTrialInd = cell(numel(subjects),1);
corrTrials = cell(numel(subjects),1);
numEvent = cell(numel(subjects),1);
trigNum = cell(numel(subjects),1);
for iTask = 1:size(task,1)
subData = get(task(iTask),'OutPutArguments')
subData = subData{1};
% combine subject specific results of preprocessing
subErp{iTask,1} = subData.subErp;
subErpEqual{iTask,1} = subData.subErpEqual;
subTrialInd{iTask,1} = subData.subTrialInd;
corrTrials{iTask,1} = subData.corrTrials;
numEvent{iTask,1} = subData.numEvent;
rejEpoch(iTask,:) = subData.rejEpoch;
trialNum{iTask,1} = subData.trialNum;
rejLog(iTask) = subData.rejLog;
end
% retrieve analysis paraemters from processed data set
analysis = subData.analysis;
% retrieve path parameters from processed data set
paths = subData.paths;
% set raw and result Dir
paths.rawDirAll = paths.local.rawDir;
paths.resDirAll = paths.local.resDir;
paths.chanlocs = paths.local.resDir;
% retrieve trigger parameters from processed data set
trig = subData.trig;
% retrieve filter parameters from processed data set
filtPar = subData.filtPar;
dur.Start = get(job,'StartTime');
dur.End = get(job,'FinishTime');
save_erp(subErp,subErpEqual,subTrialInd,corrTrials,numEvent,rejEpoch,trialNum,subjects,paths,trig,dur,analysis,filtPar,rejLog,job);
else
disp(':: There are unfinished tasks for the current job');
task
end
% define output arguments
varargout{1} = sched;
varargout{2} = job;
case 'plot'
% define output arguments
varargout{1} = [];
% set raw and result Dir
paths.rawDirAll = paths.local.rawDir;
paths.resDirAll = paths.local.resDir;
case 'usabledata'
if nargin < 4
threshold = [ ];
end
paths.rawDirAll = paths.local.rawDir;
paths.resDirAll = paths.local.resDir;
varargout{1} = usabledata(paths,threshold);
otherwise
error([':: There is no option called ' method '.']);
end
end
end % preprocessing
if (~analysis.parallel && nargin < 3) || strcmpi(lower(method),'plot')
%% Calculation of difference
% calculate difference waves
[erpAll, restoredConf, chanlocs, trig] = calc_diff(subjects,paths,analysis,taskType);
% Get Plot Parameters
[plotPar] = config('Plot','task',taskType);
% Select Channels to plot
plot_erp(erpAll,chanlocs,plotPar,trig,analysis,paths,taskType,restoredConf);
end