%讀取數據
data=xlsread（‘data.xls‘）;

%訓練預測數據
data_train=data（1:113:）;
data_test=data（118:123:）;

input_train=data_train（:1:9）‘;
output_train=data_train（:10）‘;

input_test=data_test（:1:9）‘;
output_test=data_test（:10）‘;

%數據歸一化
[inputnmininputmaxinputoutputnminoutputmaxoutput]=premnmx（input_trainoutput_train）;?%對p和t進行字標準化預處理?
net=newff（minmax（inputn）[101]{‘tansig‘‘purelin‘}‘trainlm‘）;

net.trainParam.epochs=100;
net.trainParam.lr=0.1;
net.trainParam.goal=0.00001;
%net.trainParam.show=NaN

%網絡訓練
net=train（netinputnoutputn）;

%數據歸一化
inputn_test?=?tramnmx（input_testmininputmaxinput）;

an=sim（netinputn）;

test_simu=postmnmx（anminoutputmaxoutput）;

error=test_simu-output_train;

plot（error）

k=error./output_train

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2013-01-23?17:00??BP-GA\
?????文件?????????772??2009-08-31?23:41??BP-GA\BP.m
?????文件?????????420??2009-08-16?22:48??BP-GA\Code.m
?????文件????????1556??2009-08-31?23:41??BP-GA\Cross.m
?????文件????????1158??2009-08-31?23:41??BP-GA\Decode.m
?????文件????????4179??2010-05-26?00:38??BP-GA\Genetic.m
?????文件????????1602??2009-11-12?19:20??BP-GA\Mutation.m
?????文件?????????825??2010-05-26?00:10??BP-GA\Select.m
?????文件???????46404??2009-09-18?14:23??BP-GA\data.mat
?????文件????????1049??2010-01-06?13:46??BP-GA\fun.m
?????文件?????????291??2009-08-31?23:41??BP-GA\test.m