%一個簡單的BP網絡擬合問題
%訓練樣本的生成
P=-1:0.1:1;
T?=?[-.9602?-.5770?-.0729??.3771??.6405??.6600??.4609?...
??????.1336?-.2013?-.4344?-.5000?-.3930?-.1647??.0988?...
??????.3072??.3960??.3449??.1816?-.0312?-.2189?-.3201];
chois=rand（size（T））;
T=T+chois;

PR=minmax（P）;
%創建網絡
net=newff（PR[10?1]{‘tansig‘‘purelin‘}‘traingd‘）;
%設置訓練參數
net.trainParam.epochs=3000;
net.trainParam.goal=0.001;
%訓練網絡
net=train（netPT）;
%仿真
y=sim（netP）;

%作出擬合圖形
figure
plot（PT‘o‘?P?y‘r*:‘）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件?????????527??2018-09-13?23:20??bp神經網絡擬合程序.m
?????文件????????9279??2012-07-20?23:11??ELM.m
?????目錄???????????0??2014-08-01?00:19??feature-points-by-GA-master\
?????目錄???????????0??2014-08-01?00:19??feature-points-by-GA-master\Debug\
?????文件??????116736??2014-08-01?00:19??feature-points-by-GA-master\Debug\GA?polygen?feature?points.exe
?????文件?????1076420??2014-08-01?00:19??feature-points-by-GA-master\Debug\GA?polygen?feature?points.ilk
?????文件??????953344??2014-08-01?00:19??feature-points-by-GA-master\Debug\GA?polygen?feature?points.pdb
?????目錄???????????0??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\
?????文件?????7360512??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points.sdf
?????文件?????????922??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points.sln
?????文件???????13824??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points.suo
?????文件???????41078??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\291.bmp
?????文件???????41078??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\442-neg_circle.bmp
?????文件???????41078??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\442-neg_dot.bmp
?????文件???????41078??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\442-neg_empty.bmp
?????文件???????41078??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\442-pos_circle.bmp
?????文件???????41078??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\442-pos_dot.bmp
?????文件???????41078??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\442-pos_empty.bmp
?????文件???????41080??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\442.bmp
?????文件???????41078??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\binary_image.bmp
?????文件???????41078??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\bound_full_data.bmp
?????目錄???????????0??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\Debug\
?????文件?????????826??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\Debug\cl.command.1.tlog
?????文件????????6622??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\Debug\CL.read.1.tlog
?????文件?????????590??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\Debug\CL.write.1.tlog
?????文件??????311986??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\Debug\functions.obj
?????文件?????????397??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\Debug\GA?polygen?feature?points.exe.embed.manifest
?????文件?????????472??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\Debug\GA?polygen?feature?points.exe.embed.manifest.res
?????文件?????????371??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\Debug\GA?polygen?feature?points.exe.intermediate.manifest
?????文件??????????79??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\Debug\GA?polygen?feature?points.lastbuildstate
?????文件????????3585??2014-08-01?00:19??feature-points-by-GA-master\GA?polygen?feature?points\Debug\GA?polygen?feature?points.log
............此處省略68個文件信息