problem with train function neural networks

Question

a2m22 2011-3-29

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/4288-problem-with-train-function-neural-networks

Hi

I have a problem with train function

??? Error using ==> network.train
Targets are incorrectly sized for network.
Matrix must have 2 columns.
Error in ==> tfarst1 at 14
[net,tr]=train(net,min_max,f);
>> whos
Name          Size                    Bytes  Class
Fs            1x1                         8  double array
d         22050x1                    176400  double array
f             1x432                    3456  double array
h             1x1                         8  double array
h1            1x1                         8  double array
m           432x12                    41472  double array
min_max     432x2                      6912  double array
net           1x1                     85013  network object
s         55512x1                    888192  double array (complex)
Grand total is 92380 elements using 1201469 bytes

I only have one output for each row how can I fix it?and this is my code

clear;clc
Fs=11025;
d=wavread('alhai.wav');
s=specgram(d,512,Fs,kaiser(500,5),400);
s=s(:);
m=melcepst(s,Fs);
min_max=minmax(m);
[h h1] = size(m);
f=ones(1,h);
net=newff(min_max,[5 1],{'tansig','purelin'},'trainlm');
net.trainParam.show=500;
net.trainParam.goal=1e-5;
net.trainParam.epochs=5000;
[net,tr]=train(net,min_max,f);

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Answer 1

Peter Manley-Cooke 2011-3-30

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/4288-problem-with-train-function-neural-networks#answer_6070

I have forgotten most of the NN stuff and I no longer have a toobbox but, have you tried

[net,tr]=train(net,min_max,f'); ^ adding the ' symbol to transpose the column array to a row array so that it matches the rows of the data?

Also, in newff, I would expect the dimensions to match the data, say [2 1], or better [2 5 1], or is this done automatically? I can't find documentation for newff.

Sorry I'm not more current.