How do I use the Neural Network?

I have a data set that I would like to categorize into 3 groups. For practice I made a matrix of 100rows by 4 columns to simulate 100 data points with 4 pieces of information each (in my actual data these are easting, northing, strike, and dip).

My problem is that after running the neural network clustering app (nctool), I have no idea what to do with the code that was generated. Ive saved it both as a MATLAB function and as a MATLAB Matrix only function.

But when I open the .m files and try to run them I get errors immediately.

Specifically, my (100,4) matrix is called Input, and thats all I ran through the model. That file is open, and both it and the neural network generated file are in the same folder.

When I open and run the .m file, all I get is

     Error using TestCodeOption2 (line 25)
     Not enough input arguments.

     Error in run (line 96)
     evalin('caller', [script ';']);

Line 25 is the very first line without the % comment designator.

I suppose that this file has a variety of new variables and or matrices that I need to generate.

but I'm completely lost.

I appreciate any help.

Thanks!

Answer 1

[Greg Heath]

There are very simple examples in the command line help and doc documentation

 help fitnet   % curvefitting and regression
 doc  fitnet 

 help patternnet   % pattern-recognition and classification
 doc  patternnet

I have posted many examples in the NEWSGROUP and ANSWERS. For classification, include the search words

 greg patternnet

Hope this helps.

Greg

PS Transpose your input and target matrices

[Josh White]

I'll go take a look now, thank you.

Also, after going through the examples several more times I realized that i needed to just use this command:

a = net(houseInputs);

only customized to my data:

a = NNtest1(Input)

and it gave me the results.

I'm also extremely proud to say that I've managed to do the same using the classification tool!

I know how powerful MATLAB is, and appreciate all the help you guys give, especially to beginners like me asking the questions that would have been answered in a basic MATLAB course in school, if I'd been less boneheaded and taken one.

Thanks!