inclassdistance.m

模式识别中的isodata算法

function s=inclassdistance(x,y)
% x is the center[cx cy]
% y is matrix of element in the class[x1 y1; x2 y2; ...]

% square distances
d2=(y(:,1)-x(1)).^2+(y(:,2)-x(2)).^2;
s=sum(sqrt(d2))/length(y(:,1));
%%%Author: Feng Shuo%%%%%%%%