rtc_concatenate.m

toolbox of BVQX, This is the access between BV and matlab. It will help you to analysis data from BV

function hfile3 = rtc_Concatenate(hfile, hfile2, combine)
% RTC::Concatenate  - concatenate RTCs
%
% FORMAT:       crtc = rtc1.Concatenate(rtc2 [, combine]);
%
% Input fields:
%
%       rtc2        second RTC
%       combine     if given and evaluates to true only concatenate in Y
%                   otherwise blocked
%
% Output fields:
%
%       crtc        combined/concatenated RTC

% Version:  v0.7b
% Build:    7090213
% Date:     Sep-02 2007, 1:34 PM CEST
% Author:   Jochen Weber, Brain Innovation, B.V., Maastricht, NL
% URL/Info: http://wiki.brainvoyager.com/BVQXtools

% argument check
if nargin < 2 || ...
    numel(hfile) ~= 1 || ...
    numel(hfile2) ~= 1 || ...
   ~isBVQXfile(hfile, 'rtc') || ...
   ~isBVQXfile(hfile2, 'rtc')
    error( ...
        'BVQXfile:BadArgument', ...
        'Invalid call to %s.', ...
        mfilename ...
    );
end
bc1 = bvqxfile_getcont(hfile.L);
bc2 = bvqxfile_getcont(hfile2.L);
if nargin > 2 && ...
   numel(combine) == 1 && ...
   (islogical(combine) || isnumeric(combine))
    if combine
        combine = true;
    else
        combine = false;
    end
else
    combine = false;
end

% check type and sizes of RTCs
if ~strcmpi(bc1.Type, 'designmatrix') || ...
   ~strcmpi(bc2.Type, 'designmatrix')
    error( ...
        'BVQXfile:TypeNotSupported', ...
        'This RTC type is currently not supported for beta calculation.' ...
    );
end

% get RTC matrices
rtc1 = bc1.RTCMatrix;
rtc2 = bc2.RTCMatrix;

% combine or block
if combine
    if size(rtc1, 2) ~= size(rtc2, 2)
        error( ...
            'BVQXfile:InternalError', ...
            'Combine impossible. Different number of predictors in RTCs.' ...
        );
    end

    % combine
    rtc = [rtc1;rtc2];
else

    % block
    rtc = [ ...
        [rtc1, zeros(size(rtc1, 1), size(rtc2, 2))]; ...
        [zeros(size(rtc2, 1), size(rtc1, 2)), rtc2]];

    % get names lists
    pnam1 = bc1.PredictorNames(:)';
    pnam2 = bc2.PredictorNames(:)';
    onam2 = pnam2;

    % put names of list2 into list1
    for p2c = 1:length(pnam2)

        % name exists?
        nnc = 1;
        while any(strcmp(pnam2{p2c}, pnam1))

            % build new name
            nnc = nnc + 1;
            pnam2{p2c} = sprintf('%s - S%d', onam2{p2c}, nnc);
        end

        % put name into list
        pnam1{end + 1} = pnam2{p2c};
    end
end

% put into new RTC
hfile3 = BVQXfile('new:rtc');
bc3 = bvqxfile_getcont(hfile3.L);
bc3.NrOfPredictors = size(rtc, 2);
bc3.NrOfDataPoints = size(rtc, 1);
bc3.PredictorNames = pnam1(:)';
bc3.RTCMatrix = rtc;
bvqxfile_setcont(hfile3.L, bc3);