Mercurial > hg > camir-aes2014
diff toolboxes/MIRtoolbox1.3.2/somtoolbox/som_ind2cod.m @ 0:e9a9cd732c1e tip
first hg version after svn
author | wolffd |
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date | Tue, 10 Feb 2015 15:05:51 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/toolboxes/MIRtoolbox1.3.2/somtoolbox/som_ind2cod.m Tue Feb 10 15:05:51 2015 +0000 @@ -0,0 +1,48 @@ +function cind = som_ind2cod(msize,ind) + +%SOM_IND2COD SOM_PAK style linear indeces from Matlab linear index. +% +% Cind = som_ind2cod(msize,inds) +% +% cind = som_ind2cod([10 15],44); +% cind = som_ind2cod(sMap,44); +% cind = som_ind2cod(sMap.msize,44); +% Cind = som_ind2cod([10 15],[44 13 91]'); +% +% Input and output arguments: +% msize (struct) map or topology struct +% (vector) size 1 x m, specifies the map grid size +% ind (vector) size n x 1, linear indeces of n map units +% +% cind (matrix) size n x 1, SOM_PAK style linear indeces +% (row first, then column) +% +% See also SOM_COD2IND. + +% Contributed to SOM Toolbox vs2, January 14th, 2002 by Juha Vesanto +% http://www.cis.hut.fi/projects/somtoolbox/ + +% Version 2.0beta juuso 140102 + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +if isstruct(msize), + if strcmp(msize.type,'som_map'), msize = msize.topol.msize; + elseif strcmp(msize.type,'som_topol'), msize = msize.msize; + else error('Invalid first argument.'); end +end + +if nargin<2, ind = 1:prod(msize); end + +Co = som_unit_coords(msize,'rect','sheet'); + +switch size(Co,2), +case 1, I2C = [1:prod(msize)]; +case 2, I2C = 1 + Co(:,1) + Co(:,2)*msize(2); +case 3, I2C = 1 + Co(:,1) + Co(:,2)*msize(2) + Co(:,3)*msize(1)*msize(2); % ????? +end + +cind = I2C(ind); +return; + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%