comparison toolboxes/MIRtoolbox1.3.2/somtoolbox/som_cod2ind.m @ 0:e9a9cd732c1e tip

first hg version after svn
author wolffd
date Tue, 10 Feb 2015 15:05:51 +0000
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-1:000000000000 0:e9a9cd732c1e
1 function ind = som_cod2ind(msize,cind)
2
3 %SOM_COD2IND Matlab linear index from SOM_PAK style linear indeces.
4 %
5 % ind = som_cod2ind(msize,cind)
6 %
7 % ind = som_cod2ind([10 15],44);
8 % ind = som_cod2ind(sMap,44);
9 % ind = som_cod2ind(sMap.msize,44);
10 % ind = som_cod2ind([10 15],[44 13 91]');
11 %
12 % Input and output arguments:
13 % msize (struct) map or topology struct
14 % (vector) size 1 x m, specifies the map grid size
15 % cind (vector) size n x 1, SOM_PAK style linear indeces for n map units
16 % (row first, then column)
17 %
18 % ind (vector) size n x 1, Matlab linear indeces
19 %
20 % See also SOM_IND2COD.
21
22 % Contributed to SOM Toolbox vs2, January 14th, 2002 by Juha Vesanto
23 % http://www.cis.hut.fi/projects/somtoolbox/
24
25 % Version 2.0beta juuso 140102
26
27 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
28
29 if isstruct(msize),
30 if strcmp(msize.type,'som_map'), msize = msize.topol.msize;
31 elseif strcmp(msize.type,'som_topol'), msize = msize.msize;
32 else error('Invalid first argument.'); end
33 end
34
35 if nargin<2, cind = 1:prod(msize); end
36
37 I2C = som_ind2cod(msize,[1:prod(msize)]);
38 [dummy,C2I] = sort(I2C);
39 ind = C2I(cind);
40
41 return;
42
43 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%