62 lines
2.4 KiB
Matlab
62 lines
2.4 KiB
Matlab
function deriv = subscript_get(nargsout, func, args, varargin)
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% function deriv = subscript_get(nargsout, func, args, varargin)
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% returns the appropriate entry of the return argument from a user-defined function
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% which returns either the jacobian or hessian (or both)
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%
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% INPUTS
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% nargsout [int] integer indicating the number of the return argument containing the jac/hess
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% func [function handle] associated with the function
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% args [cell array] arguments provided to func
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% varargin [cell array] arguments showing the index (or indices) of the element to be returned
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%
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% OUTPUTS
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% deriv [double] the (element1,element2) entry of the hessian
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%
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% SPECIAL REQUIREMENTS
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% none
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% Copyright (C) 2010 Dynare Team
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%
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% This file is part of Dynare.
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%
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% Dynare is free software: you can redistribute it and/or modify
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% it under the terms of the GNU General Public License as published by
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% the Free Software Foundation, either version 3 of the License, or
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% (at your option) any later version.
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%
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% Dynare is distributed in the hope that it will be useful,
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% but WITHOUT ANY WARRANTY; without even the implied warranty of
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% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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% GNU General Public License for more details.
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%
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% You should have received a copy of the GNU General Public License
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% along with Dynare. If not, see <http://www.gnu.org/licenses/>.
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switch size(varargin,2)
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case 1 %first deriv
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switch nargsout
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case 1
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[outargs{1}] = func(args{:});
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deriv = outargs{1}(varargin{1});
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case 2
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[outargs{1} outargs{2}] = func(args{:});
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deriv = outargs{2}(varargin{1});
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otherwise
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error('Wrong number of output arguments (%d) passed to subscript_get().',nargsout);
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end
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case 2 %second deriv
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switch nargsout
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case 1
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[outargs{1}] = func(args{:});
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deriv = outargs{1}(varargin{1},varargin{2});
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case 3
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[outargs{1} outargs{2} outargs{3}] = func(args{:});
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deriv = outargs{3}(varargin{1},varargin{2});
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otherwise
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error('Wrong number of output arguments (%d) passed to subscript_get().',nargsout);
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end
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otherwise
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error('Wrong number of indices (%d) was passed to subscript_get().',size(varargin,2));
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end
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end
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