% BP網(wǎng)絡(luò)初始化:給出網(wǎng)絡(luò)的訓(xùn)練樣本P、T,
% 輸入、輸出數(shù)及隱含神經(jīng)元數(shù)R,S2,S1
function [P,T,R,S1,S2,S]=nninit
p=[0 0 0 0 0;
   1 0 0 0 1;
   0 1 0 0 1;
   0 0 1 0 0;
   0 0 0 1 0];
P=p';
t=[0 0 0 0;
   1 0 0 0;
   0 1 0 0;
   0 0 1 0;
   0 0 0 1];
 t=t';
 T=t;
[R,Q]=size(P);
[S2,Q]=size(T);
S1=6;
S=R*S1+S1*S2+S1+S2; % 遺傳算法編碼長(zhǎng)度