Add missing file in f6ffa330

matlab/missing/ilu/ilu.m

+function [L, U, P] = ilu(A, setup)
+% Partially implement function ilu using the (now deprecated) luinc
+
+% 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 nargout ~= 2
+      error('Only two output arguments supported')
+  end
+  if nargin ~= 2
+      error('Only two input arguments supported')
+  end
+
+  if isfield(setup, 'type')
+      if setup.type ~= 'ilutp'
+          error(['Unsupported type: ' setup.type ])
+      end
+  end
+  
+  if isfield(setup, 'milu')
+      if setup.milu == 'off'
+          setup.milu = 0;
+      else
+          error(['Unsupported milu: ' setup.milu ])
+      end
+  end
+  
+  [L, U] = luinc(A, setup);
+end