train using mapstd problem.

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Parkz Leingodz
Parkz Leingodz 2013-12-27
编辑： Parkz Leingodz 2013-12-27
i'm going to train an 15 image to [1 1 1 1 1 1 1 1 1 1 0 0 0 0 0]
my output is one layer but somehow the function mapstd isn't working, do you have any advice for my problem?
clc;
global latih_stdp;
global nettrain;
for i =1:15
img = imread(strcat('E:Skripsi\crop2\image',int2str(i),'.bmp'));
im = rgb2gray(img);
im=reshape(im,[],1);
latih(:,i) = im;
end
T=[1 1 1 1 1 1 1 1 1 1 0 0 0 0 0];
[latih_n,latih_stdp] = mapstd(latih);
net = newff(minmax(latih_n), [3 1], {'logsig' 'purelin'});
net.trainParam.epochs = 1000;
net.trainParam.goal = 1e-20;
net.trainParam.lr = 0.1;
net.trainParam.mc = 0.9;
nettrain = train(net,latih_n,T);
here is the error :
Error using var (line 59)
First argument must be single or double.
Error in std (line 32)
y = sqrt(var(varargin{:}));
Error in mapstd.create (line 15)
settings.xstd(i) = std(xi);
Error in mapstd (line 48)
[y,settings] = mapstd.create(x,param);
Error in b (line 17)
[latih_n,latih_stdp] = mapstd(latih); // why this code can't work?
thanks for kindly answer

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