Can I use the network from 'nftool' output to predict other data?

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Asim Biswas
Asim Biswas el 15 de Ag. de 2012
Respondida: Dim Lit el 1 de Ag. de 2014
Hello,
This is first time I am trying neural network. Following the tutorials (videos) in the mathworks website, I used the 'nftool' to create a relationship between a set of input parameters (e.g., predictors or x1, x2, x3, ...xn in regression) and a target parameter (e.g., predicted or y in the regression). Now, can I use the network (or relationship) created here to predict the value (e.g., y) using another independent set of same predictors? For example, I have a file with only predictors (x1, x2, x3, ...xn). Can I use these to predict y (as we develop a regression equation and use the relationship to predict the y value from another set of data). How can I express the relationship and where I can get that in the output? Can I express the relationship as we express in the regression equation? Thank you so much. I really appreciate your help.
I am using matlab version 7.9.0 (R2009b) and the neural netwrok toolbox version 6.0.3.
Thanks a lot in advance.
Asim

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Respuesta aceptada

Greg Heath
Greg Heath el 22 de Ag. de 2012
If the old and new data can be considered to be samples from the same probability distribution, then
ynew = net(xnew);
should do the trick.

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Dim Lit
Dim Lit el 1 de Ag. de 2014
I have somehow the same question with the aforementioned one! Lets assume that i want to use the neural network tool in order to correlate my data (a whole set of input and the target data set as well) so as to produce an analytical solution of all these data to predict sth computationally without to use again and again the matlab tools. My question is: Is there any way to take the basic equation which the matlab tools use (after all the training processes etc.) to produce the "analytical" solution?? Thnx in advance DL

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