prt_addcond.m

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

function hfile = prt_AddCond(hfile, cname, onoffsets, ccolor)
% PRT::AddCond  - add a condition to a PRT file
%
% FORMAT:       [prt = ] prt.AddCond(name, onoffsets, ccolor);
%
% Input fields:
%
%       name        condition name
%       onoffsets   Ox2 list of on and offsets
%       ccolor      condition color
%
% Output fields:
%
%       prt         altered PRT object
%
% Note: all input arguments are optional. if none is given, an
%       empty condition with a 'Condition Nr.' identifier and
%       random color is generated

% Version:  v0.7b
% Build:    7090213
% Date:     Sep-02 2007, 1:07 PM CEST
% Author:   Jochen Weber, Brain Innovation, B.V., Maastricht, NL
% URL/Info: http://wiki.brainvoyager.com/BVQXtools

% argument check
if nargin < 1 || ...
    numel(hfile) ~= 1 || ...
   ~isBVQXfile(hfile, 'prt')
    error( ...
        'BVQXfile:BadArgument', ...
        'Invalid call to %s.', ...
        mfilename ...
    );
end
bc = bvqxfile_getcont(hfile.L);
ncon = length(bc.Cond);
if nargin > 1 && ...
    ischar(cname) && ...
   ~isempty(cname)
    cname = cname(:)';
else
    cname = sprintf('Condition %d', ncon + 1);
end
if nargin > 2 && ...
    isa(onoffsets, 'double') && ...
    length(size(onoffsets)) == 2 && ...
    size(onoffsets, 2) == 2 && ...
    all(onoffsets(:) >= 0) && ...
   ~any(isinf(onoffsets(:)) | isnan(onoffsets(:)))
    onoffsets = round(onoffsets);
else
    onoffsets = [];
end
noo = size(onoffsets, 1);
if nargin > 3 && ...
    isa(ccolor, 'double') && ...
    numel(ccolor) == 3 && ...
   ~any(isinf(ccolor) | isnan(ccolor) | ccolor < 0 | ccolor >= 256)
    ccolor = floor(ccolor(:)');
else
    ccolor = floor(255.99 * rand(1,3));
end

% build new condition
newc = struct( ...
    'ConditionName', {{cname}}, ...
    'NrOfOnOffsets', noo, ...
    'OnOffsets',     onoffsets, ...
    'Color',         ccolor);

% update object
bc.Cond = [bc.Cond(:)', newc];
bc.NrOfConditions = numel(bc.Cond);
bvqxfile_setcont(hfile.L, bc);