ramsay_weight.m

来自「基于M估计的迭代最小二乘算法」· M 代码 · 共 5 行

function [weight] = Ramsay_weight(z)
%Ramsay_weight  calculate weight value based on Ramsay's Ea function where
%a=0.3.
a=0.3;
weight=exp(-a*abs(z));