Problem with targets in nprtool
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Ethan
el 5 de Oct. de 2011
Comentada: Greg Heath
el 27 de Mayo de 2016
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
4 comentarios
udoInyang inyang
el 10 de Mayo de 2016
The target must contain binary data. That a maximum of two classes.
Greg Heath
el 27 de Mayo de 2016
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
Respuesta aceptada
Neeraj N Sajjan
el 26 de Mayo de 2016
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.
1 comentario
Greg Heath
el 27 de Mayo de 2016
CORRECT!
The target columns should be a {0,1} unit vector column of the unit matrix
eye(n).
See my above comment.
Greg
Más respuestas (4)
Alan Norman
el 10 de Sept. de 2012
Editada: Alan Norman
el 10 de Sept. de 2012
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.
0 comentarios
Jonatan Zapata
el 18 de Abr. de 2012
I had the same problem with negative targets, I changed it with positive values and solve the problem.
0 comentarios
Razieh
el 22 de Feb. de 2014
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?
1 comentario
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