Commit 31d4fe5e authored by Stéphane Adjemian's avatar Stéphane Adjemian
Browse files

Added new routine to insert column vector in a matrix.

parent 6c8e1ca9
function matrix = insert_column_vector_in_a_matrix(matrix, vector, i)
% Copyright (C) 2013 Dynare Team
%
% This file is part of Dynare.
%
% Dynare 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.
%
% Dynare 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 Dynare. If not, see <http://www.gnu.org/licenses/>.
if nargin<2
error('insert_column_vector_in_a_matrix: I need at least two input arguments!')
end
if ~isequal(ndims(matrix),2)
error(['insert_column_vector_in_a_matrix: First input ''' inputname(1) ''' must be a matrix!'])
end
[n,m] = size(matrix);
if nargin<3
i = m+1;
end
if ~isvector(vector) || ~isequal(numel(vector),size(vector,1)) || ~isequal(numel(vector),n)
error(['insert_column_vector_in_a_matrix: Second input argument ''' inputname(2) ''' must be a ' int2str(n) ' by 1 vector!'])
end
switch i
case m+1
matrix = [matrix, vector];
case 1
matrix = [vector, matrix];
otherwise
matrix = [matrix(:,1:i-1), vector, matrix(:,i:m)];
end
%@test:1
%$ % Define a datasets.
%$ A = rand(8,3); b = rand(8,1);
%$
%$ try
%$ A4 = insert_column_vector_in_a_matrix(A, b);
%$ A1 = insert_column_vector_in_a_matrix(A, b, 1);
%$ A2 = insert_column_vector_in_a_matrix(A, b, 2);
%$ t(1) = 1;
%$ catch
%$ t(1) = 0;
%$ end
%$
%$ if t(1)
%$ t(2) = dyn_assert(A4,[A,b],1e-15);
%$ t(3) = dyn_assert(A1,[b,A],1e-15);
%$ t(4) = dyn_assert(A2,[A(:,1), b, A(:,2:end)],1e-15);
%$ end
%$ T = all(t);
%@eof:1
\ No newline at end of file
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