myparzen.m

pazern窗估计的matlab程序

function g = myParzen( x , xi , h )
%本程序完成Parzen窗估计和估计分类
%  x: 测试样本点
%  xi: 训练样本点
%  h: 窗宽参数
%  g: 判决函数
[lx,ly] = size( xi );
Vn = 4/3 * pi * (h/2)^lx;

g = 0;
for i = 1:ly
    g = g + exp(-(x-xi(:,i))'*(x-xi(:,i))/(2*h^2));
end
g = g / (Vn*ly);