www.gusucode.com > mbcmodels 工具箱 matlab 源码程序 > mbcmodels/@xregrbf/thinplate.m
function y = thinplate( r, m ) %XREGRBF/THINPLATE Thin-plate spline RBF kernel % THINPLATE(R,M) is a matrix the same size as R containing the values of the % thin-plate spline RBF kernel at the squared and weighted distances given in R. % % The thin-plate spline kernel is given by phi(R) = 0.5*R*log(R), where R is % the squared and weighted distance. % Copyright 2000-2008 The MathWorks, Inc. and Ford Global Technologies, Inc. y = 0.5 * r .* log( r ); %------------------------------------------------------------------------------| % EOF %------------------------------------------------------------------------------|