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% SUBSASGN [overload base function]
% Copyright Notice
%
% Copyright (C) 2014 SUPELEC
%
% Author: Julien Bect <julien.bect@supelec.fr>
% Copying Permission Statement
%
% This file is part of
%
% STK: a Small (Matlab/Octave) Toolbox for Kriging
% (http://sourceforge.net/projects/kriging)
%
% STK 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.
%
% STK 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 STK. If not, see <http://www.gnu.org/licenses/>.
function x = subsasgn (x, idx, val)
if ~ isa (x, 'stk_dataframe')
% Inherit behaviour from @stk_dataframe
% (see @stk_dataframe/subsasgn.m)
x = subsasgn (x, idx, val.stk_dataframe);
return
end
if all (builtin ('size', x) == 0)
% This happens in Octave 3.2.x when doing B(idx) = D if B does not
% exist and D is an stk_factorialdesign object. In this case, x is an
% UNITIALIZED 0x0 stk_factorialdesign object. We have to initialize it.
x = stk_factorialdesign ();
end
switch idx(1).type
case '()'
% The result is not an stk_factorialdesign object anymore, in
% general. An implicit cast to stk_dataframe is thus performed.
x = x.stk_dataframe;
x = subsasgn (x, idx, val);
case '{}'
errmsg = 'Indexing with curly braces is not allowed.';
stk_error(errmsg, 'IllegalIndexing');
case '.'
if length (idx) > 1
val = subsasgn (get (x, idx(1).subs), idx(2:end), val);
end
x = set (x, idx(1).subs, val);
end
end % function subsasgn
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