function data = data_majdak2013ctc(varargin)
%DATA_MAJDAK2013CTC Listener-specific localization in sagittal planes
%   Usage: data = data_majdak2013ctc(condition)
%          data = data_majdak2013ctc(lat, dlat, condition)
%
%   DATA_MAJDAK2013CTC(condition) returns listener-specific experimental
%   data from Majdak et al. (2013) testing localization performance in
%   sagittal planes for repeated HRTF measurements motivated by CTC binaural
%   synthesis.
%
%   The data struct comprises the following fields:
%
%     'id'     listener ID
%     'mtx'    experimental data matrix containing 9 columns
%              - target azimuth
%              - target elevation
%              - response azimuth
%              - response elevation
%              - lateral angle of target
%              - polar angle of target
%              - lateral angle of response
%              - polar angle of response
%
%
%   The condition flag may be one of:
%
%     'Learn' Last 300 trials of acoustical training with visual feedback.
%     'A'     First HRTF measurement. This is the default.
%     'B'     Second HRTF measurement.
%
%
%   References:
%     P. Majdak, B. Masiero, and J. Fels. Sound localization in
%     individualized and non-individualized crosstalk cancellation systems.
%     J. Acoust. Soc. Am., 133:2055--68, 2013.
%     
%
%   Url: http://amtoolbox.org/amt-1.2.0/doc/data/data_majdak2013ctc.php

% Copyright (C) 2009-2022 Piotr Majdak, Clara Hollomey, and the AMT team.
% This file is part of Auditory Modeling Toolbox (AMT) version 1.2.0
%
% 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/>.

% AUTHOR: Robert Baumgartner

%% Check input options

% Define input flags
definput.flags.condition = {'A','B','Learn'};

% Parse input options
[flags,kv]  = ltfatarghelper({},definput,varargin);


%% Extract data
x=amt_load('majdak2013ctc','data.mat');

C = find(ismember(x.condition,flags.condition));

for ll = 1:length(x.subject)
  
  data(ll).mtx = real(x.subject(ll).expData{C}(:,1:8));
  data(ll).id = x.subject(ll).id;

end