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資源簡介

關于神經網絡的仿真程序,利用遺傳算法優化神經網絡的權值和閥值

資源截圖

代碼片段和文件信息

%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
-----------?---------??----------?-----??----

?????文件????????772??2009-08-31?23:41??chapter3\chapter3\BP.m

?????文件????????420??2009-08-16?22:48??chapter3\chapter3\Code.m

?????文件???????1556??2009-08-31?23:41??chapter3\chapter3\Cross.m

?????文件??????46404??2009-09-18?14:23??chapter3\chapter3\data.mat

?????文件???????1158??2009-08-31?23:41??chapter3\chapter3\Decode.m

?????文件???????1049??2010-01-06?13:46??chapter3\chapter3\fun.m

?????文件???????4179??2010-05-26?00:38??chapter3\chapter3\Genetic.m

?????文件???????1602??2009-11-12?19:20??chapter3\chapter3\Mutation.m

?????文件????????825??2010-05-26?00:10??chapter3\chapter3\Select.m

?????文件????????291??2009-08-31?23:41??chapter3\chapter3\test.m

?????目錄??????????0??2010-05-26?00:39??chapter3\chapter3

?????目錄??????????0??2010-06-15?22:28??chapter3

-----------?---------??----------?-----??----

????????????????58256????????????????????12


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