Neural Network Question regarding matrix regression
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I'm new to neural networks.
How can I make a nonlinear regression fit ? My target is a data matrix.
I start nftool and I have Input and Target. What is the input ?
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Accepted Answer
Greg Heath
on 14 May 2013
x=linspace(0,400,5);
y=linspace(-10,10,11);
X = repmat(x,1,11);
Y = repmat(y,1,5);
Z=(tanh((X+20).*(Y-2)/200)-1)*3;
input = (X; Y);
target = Z;
Hope this helps.
Thank you for formally accepting my answer
Greg
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More Answers (3)
Greg Heath
on 7 May 2013
The net represents a nonlinear mapping from I-dimensional input vectors to O-dimensional output vectors. The sizes of the input and target matrices are
[ I N ] = size(input)
[ O N ] = size(output)
Hope this helps.
Thank you for formally accepting my answer
Greg
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Stephan Moeller
on 14 May 2013
Edited: Stephan Moeller
on 14 May 2013
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Greg Heath
on 14 May 2013
Practice using nntool on MATLAB's demo/example data sets.
help nndatasets
Then try your data.
The only analytic form you can get from the net is a sum of tanh functions.
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