gusucode.com > 《MATLAB神经网络超级学习手册》随书光盘源码程序 > code/7/N7_2.m
clear all clc p = [3 2]; t = [0.4 0.8]; wv = -4:0.4:4; bv = wv; ES = errsurf(p,t,wv,bv,'logsig') plotes(wv,bv,ES,[60 30])