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sensitivity analysis ANN
Please clarify your terminology. What are some examples of input parameters? Ditto for output parameters. For sensitivity a...

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Non Linear regression
% name: myfun.m file function yhat = myfun(beta,X) b1 = beta(1); %(Freight multiplier) b2 = beta(2); %(Freight rate mul...

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How to zero pad in frequency domain ?
fft fftshift zeropad both ends %different for N odd and N even ifftshift ifft % interpolates original...

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Neural networks training and 'removeconstantrows' process function
I assume your original input and target matrices have sizes [ 4480 N] = size(p) [ 330 N ] = size(t) Constant rows are ...

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Need help regarding fuzzy neural networks, genetic algortithms
I work with ANNs. However, your answer is too broad and imprecise for me to try to answer it completely in a few paragraphs. I a...

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fft witout using fft function
Assuming you mean DFT with uniformly sampled time and frequency and not F(ast)FT, convert the summation in the documentation int...

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Basic matrix equation Ax=B with restrictions
x = [ x1 ; x2 ]% x2 known A = [ A1 A2 ]% A1 & A2 known A*x = A1*x1 + A2*x2 % last term known A1*x1 = b - A2*x2 ...

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rand('state',11)
rand is an obsolete random number generator that generates uniformly distributed outputs in the open interval (0,1). ran...

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How to interpret the covariance matrix elements: diagonal versus off-diagonal terms
I need to factor the covariance matrix to get a feeling for the properties and associations of the individual variables. Co...

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Character recognition
The best method depends on the particular data set. I have had very good results with neural networks. A newsgroup search ...

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Different neural network training result each time
I suspect that similar results are obtained because the same RNG seed is used. See my previous comments about not resettin...

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determinant of singular matrix is non-zero
That is very interesting because obsolete Matlab 6.5 does yield 0. Greg

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problems with training function LVQ (example from help does not work)
Sorry for the formatting. This text editor sucks. Greg

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problems with training function LVQ (example from help does not work)
Nothing is wrong...it is a simple problem that only requires 2 or 3 epochs to obtain 0 error. You just didn't follow through. ...

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