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# bst_readmarkerfilectf

## (Toolbox/bst_readmarkerfilectf.m in BrainStorm 2.0 (Alpha))

### Function Synopsis

    [marker_names,n_samples ,trial_time] = bst_readmarkerfilectf(DS_FOLDER);

### Help Text

    BST_READMARKERFILECTF - read_markerf reads the CTF markerfile MarkerFile.mrk
     function [marker_names,n_samples ,trial_time] = bst_readmarkerfilectf(DS_FOLDER);
     function trial_time = read_markerf(DS_FOLDER);
     read_markerf reads the CTF markerfile MarkerFile.mrk located in the DS_FOLDER folder
     (a .ds CTF data set  folder) and returns

     marker_names is a cell array of strings containing the name of the markers
     n_samples a corresponding cell array; each cell containing the number of events per marker
     trial_time, a cell array - The content of each cell, trial_time{i}, is a N x 2 matrix related to the occurences of marker i
     trial_time{i}(:,1) contains the trial numbers where marker i occured
     trial_time{i}(:,2) contains the corresponding time from sync point in the corresponding trial

     -- Sylvain Baillet, Ph.D.
     Cognitive Neuroscience & Brain Imagin Laboratory - CNRS UPR640- Paris France
     March 2001

### Listing of function C:\BrainStorm_2001\Toolbox\bst_readmarkerfilectf.m

    function [marker_names,n_samples ,trial_time] = bst_readmarkerfilectf(DS_FOLDER);
    %BST_READMARKERFILECTF - read_markerf reads the CTF markerfile MarkerFile.mrk
    % function [marker_names,n_samples ,trial_time] = bst_readmarkerfilectf(DS_FOLDER);
    % function trial_time = read_markerf(DS_FOLDER);
    % read_markerf reads the CTF markerfile MarkerFile.mrk located in the DS_FOLDER folder
    % (a .ds CTF data set  folder) and returns
    %
    % marker_names is a cell array of strings containing the name of the markers
    % n_samples a corresponding cell array; each cell containing the number of events per marker
    % trial_time, a cell array - The content of each cell, trial_time{i}, is a N x 2 matrix related to the occurences of marker i
    % trial_time{i}(:,1) contains the trial numbers where marker i occured
    % trial_time{i}(:,2) contains the corresponding time from sync point in the corresponding trial
    %
    %
    % -- Sylvain Baillet, Ph.D.
    % Cognitive Neuroscience & Brain Imagin Laboratory - CNRS UPR640- Paris France
    % March 2001

    %<autobegin> ---------------------- 26-May-2004 11:29:44 -----------------------
    % --------- Automatically Generated Comments Block Using AUTO_COMMENTS ---------
    %
    % CATEGORY: Data Processing
    %
    % At Check-in: $Author: Mosher $  $Revision: 15 $  $Date: 5/26/04 9:59a $
    %
    % This software is part of BrainStorm Toolbox Version 2.0 (Alpha) 24-May-2004
    %
    % Principal Investigators and Developers:
    % ** Richard M. Leahy, PhD, Signal & Image Processing Institute,
    %    University of Southern California, Los Angeles, CA
    % ** John C. Mosher, PhD, Biophysics Group,
    %    Los Alamos National Laboratory, Los Alamos, NM
    % ** Sylvain Baillet, PhD, Cognitive Neuroscience & Brain Imaging Laboratory,
    %    CNRS, Hopital de la Salpetriere, Paris, France
    %
    % See BrainStorm website at http://neuroimage.usc.edu for further information.
    %
    % Copyright (c) 2004 BrainStorm by the University of Southern California
    % This software distributed  under the terms of the GNU General Public License
    % as published by the Free Software Foundation. Further details on the GPL
    % license can be found at http://www.gnu.org/copyleft/gpl.html .
    %
    % FOR RESEARCH PURPOSES ONLY. THE SOFTWARE IS PROVIDED "AS IS," AND THE
    % UNIVERSITY OF SOUTHERN CALIFORNIA AND ITS COLLABORATORS DO NOT MAKE ANY
    % WARRANTY, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF
    % MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, NOR DO THEY ASSUME ANY
    % LIABILITY OR RESPONSIBILITY FOR THE USE OF THIS SOFTWARE.
    %<autoend> ------------------------ 26-May-2004 11:29:44 -----------------------

    VERBOSE = 1;

    if ~exist(fullfile(DS_FOLDER,'MarkerFile.mrk'),'file');
        error(['MarkerFile MarkerFile.mrk does not exist in directory ',DS_FOLDER]);
        return
    end

    mrkr =  textread(fullfile(DS_FOLDER,'MarkerFile.mrk'),'%s','delimiter','\n'); % Store everything in a cell array of string

    id = find(strcmp(mrkr,'NUMBER OF MARKERS:'));
    n_markers  = str2num(mrkr{id+1});

    id = find(strcmp(mrkr,'NAME:'));
    marker_names = mrkr(id+1);

    id = find(strcmp(mrkr,'NUMBER OF SAMPLES:'));
    n_samples  = str2num(char(mrkr(id+1)));

    mrkr_info = strmatch('TRIAL NUMBER',mrkr)+1; % Lines  where the marker times/trial info start

    for i = 1:n_markers
        trial_time{i} = str2num(char(mrkr(mrkr_info(i):mrkr_info(i)+n_samples(i))));
        trial_time{i}(:,1) = trial_time{i}(:,1) + 1;
    end

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