Problem with targets in nprtool

I'm trying to train a ANN using the nprtool but i can't select my targets. The targets option is empty while the inputs shows all my data. Why is it happening? Any idea?

Thanks in advance

[Mattias]

Can verify that I have exactly the same problem. The Input dialog works perfect! The target dialog is not working!

However, the provided Example Data Sets can be loaded as targets and thereafter selected but I can't select my own ones. Doesn't matter if I load data into the workspace or selects the variables directly from a mat-file. The target dialog is not working! (System: OS X - Lion)

From my point of view, -No folder problem!

Any idea?

[Greg Heath]

Are your targets columns of the unit matrix?

Hope this helps.

Greg

[udoInyang inyang]

The target must contain binary data. That a maximum of two classes.

[Greg Heath]

Not at all! For c classes, the target columns are columns of the {0,1} unit matrix eye(c);

 [ x t ] = iris_dataset;
 whos       % No semicolon
  t = t     % No semicolon

Hope this helps.

Greg

Answer 1

[Neeraj N Sajjan]

If you have n classes ,then your target matrix for nprtool should be a n*m matrix where m is the number of training samples. Each column of the matrix should have a 1 in the row representing the corresponding class with the rest as 0.

[Greg Heath]

CORRECT!

The target columns should be a {0,1} unit vector column of the unit matrix

 eye(n).

See my above comment.

Greg

Answer 2

[Alan Norman]

I changed my target from a single integer 1 to 10 to a vector of [ 0 0 0 1 0 0 0 0 0 0 ] for each example and then my target appears in the GUI and life is good.

Answer 3

[Jonny]

Do you have your targets in your folder where are your inputs?

[Ethan]

Yes, they are in the same folder and both are loaded in the memory

Answer 4

[Jonatan Zapata]

I had the same problem with negative targets, I changed it with positive values and solve the problem.

Answer 5

[Razieh]

I have the same problem. My target has size of 6*3600 and it's format is [0.9 0.1 0.1 0.1 0.1 0.1] and loaded into workspace but not appear to be chosen in nprtool, but input is ok. Can anybody help?

[Greg Heath]

Did you try replacing 0.1,0.9 to 0,1 ?