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Problem with targets in nprtool

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Ethan
Ethan 2011-10-5
评论： Greg Heath 2016-5-27
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
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udoInyang inyang
udoInyang inyang 2016-5-10
The target must contain binary data. That a maximum of two classes.
Greg Heath
Greg Heath 2016-5-27
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

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采纳的回答

Neeraj N Sajjan
Neeraj N Sajjan 2016-5-26
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 个评论
Greg Heath
Greg Heath 2016-5-27
CORRECT!
The target columns should be a {0,1} unit vector column of the unit matrix
eye(n).
See my above comment.
Greg

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更多回答（4 个）

Alan Norman
Alan Norman 2012-9-10
编辑：Alan Norman 2012-9-10
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.
Jonny
Jonny 2011-10-16
Do you have your targets in your folder where are your inputs?
  1 个评论
Ethan
Ethan 2011-10-17
Yes, they are in the same folder and both are loaded in the memory

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Jonatan Zapata
Jonatan Zapata 2012-4-18
I had the same problem with negative targets, I changed it with positive values and solve the problem.
Razieh
Razieh 2014-2-22
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?

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