Mercurial > hg > camir-ismir2012
view toolboxes/FullBNT-1.0.7/netlab3.3/hintmat.m @ 0:cc4b1211e677 tip
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646 (e263d8a21543) added further path and more save "camirversion.m"
author | Daniel Wolff |
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date | Fri, 19 Aug 2016 13:07:06 +0200 |
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function [xvals, yvals, color] = hintmat(w); %HINTMAT Evaluates the coordinates of the patches for a Hinton diagram. % % Description % [xvals, yvals, color] = hintmat(w) % takes a matrix W and returns coordinates XVALS, YVALS for the % patches comrising the Hinton diagram, together with a vector COLOR % labelling the color (black or white) of the corresponding elements % according to their sign. % % See also % HINTON % % Copyright (c) Ian T Nabney (1996-2001) % Set scale to be up to 0.9 of maximum absolute weight value, where scale % defined so that area of box proportional to weight value. w = flipud(w); [nrows, ncols] = size(w); scale = 0.45*sqrt(abs(w)/max(max(abs(w)))); scale = scale(:); color = 0.5*(sign(w(:)) + 3); delx = 1; dely = 1; [X, Y] = meshgrid(0.5*delx:delx:(ncols-0.5*delx), 0.5*dely:dely:(nrows-0.5*dely)); % Now convert from matrix format to column vector format, and then duplicate % columns with appropriate offsets determined by normalized weight magnitudes. xtemp = X(:); ytemp = Y(:); xvals = [xtemp-delx*scale, xtemp+delx*scale, ... xtemp+delx*scale, xtemp-delx*scale]; yvals = [ytemp-dely*scale, ytemp-dely*scale, ... ytemp+dely*scale, ytemp+dely*scale];