1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) INRIA - Serge STEER
// Copyright (C) DIGITEO - 2010-2011 - Allan CORNET
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
function varargout = ind2sub(dims, I)
// ind2sub is used to determine the equivalent subscript values
// corresponding to a given single index into an array.
//
// [i1,i2,..] = ind2sub(dims,I) returns the arrays i1, i2, ... containing the
// equivalent row, column, ... subscripts corresponding to the index
// matrix I for a matrix of size dims.
//
// Mi=ind2sub(dims,I) returns a matrix Mi whose columns are the arrays i1(:), i2(:), ...
rhs = argn(2);
if rhs <> 2 then
error(msprintf(gettext("%s: Wrong number of input argument(s): %d expected.\n"), "ind2sub", 2));
end
varargout = list();
d = cumprod(double(dims));
k1 = I;
k = [];
k1 = k1 - 1;
for i = size(d, "*")-1:-1:1
q = floor(k1/d(i));
k1 = k1 - q * d(i);
varargout(0) = q + 1;
end
varargout(0) = k1 + 1;
if argn(1) == 1 then //return a matrix whose columns are the subindices
K = []
for k = varargout
K = [K matrix(k, -1, 1)];
end
varargout = list(K);
end
endfunction
|