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scilab comment // Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
scilab comment // Copyright (C) INRIA - Serge STEER
scilab comment //
scilab comment // This file must be used under the terms of the CeCILL.
scilab comment // This source file is licensed as described in the file COPYING, which
scilab comment // you should have received as part of this distribution. The terms
scilab comment // are also available at
scilab comment // http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
scilab blank
scilab code function I=sub2ind(dims,varargin)
scilab comment //sub2ind is used to determine the equivalent single index
scilab comment //corresponding to a given set of subscript values.
scilab blank
scilab comment //I = sub2ind(dims,i1,i2,..) returns the linear index equivalent to the
scilab comment //row, column, ... subscripts in the arrays i1,i2,.. for an matrix of
scilab comment //size dims.
scilab blank
scilab comment //I = sub2ind(dims,Mi) returns the linear index
scilab comment //equivalent to the n subscripts in the columns of the matrix Mi for a matrix
scilab comment //of size dims.
scilab blank
scilab code d=[1;cumprod(matrix(dims(1:$-1),-1,1))]
scilab code for i=1:size(varargin)
scilab code if varargin(i)==[] then I=[],return,end
scilab code end
scilab blank
scilab code if size(varargin)==1 then //subindices are the columns of the argument
scilab code I=(varargin(1)-1)*d+1
scilab code else //subindices are given as separated arguments
scilab code I=1
scilab code for i=1:size(varargin)
scilab code I=I+(varargin(i)-1)*d(i)
scilab code end
scilab code end
scilab code endfunction
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