Probabilistic Neural Network all outputs the same

2013 10 21
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更新时间：2013 10 23
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I have to create a PNN in matlab. To start, I am using a small dataset with only two classes. I am using the following code:
net = newpnn(train_data',train_class'); out = sim(net,test_data');
My ouput is array of all 1's.
Anyone have any suggestions?

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Greg Heath
Greg Heath 2013-10-23

0 个投票

1.Normalize inputs to have zero mean and unit standard deviation via zscore or mapstd.
2. Train multiple designs in a loop over a spread value interval that includes the default value of 1. For example, spread = 0.1 : 0.1 : 2.

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