# Copyright (C) 2006, 2007 Michael Creel <michael.creel@uab.es> # under the terms of the GNU General Public License. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; If not, see <http://www.gnu.org/licenses/>. # __kernel_weights: for internal use by kernel_regression and kernel_density. There # is also a faster .oct file version that should be be found automatically. function W = __kernel_weights(data, evalpoints, kernel) # calculate distances nn = rows(evalpoints); n = rows(data); W = zeros(nn,n); for i = 1:nn zz = data - repmat(evalpoints(i,:), n, 1); zz = feval(kernel, zz); W(i,:) = zz'; endfor endfunction

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