how to set the target for large data of multiple subjects in neural network?

Hi,

I have 90 subjects with 1100 data each. Out of 90 subjects, 40 of them are positive and 50 of them are negative.

I managed to arrange them into 1100x90 from positive subjects,p to negative subjects,n respectively (first 40 column = p and last 50 column = n).

How to set the target vector for each subject (1100x1), where each p, t = 01 and each n, t = 10. In another way, I want to arrange them like this;

(:,1) -> t = 01
.
.
(:,40) -> t = 01
(:,41) -> t = 10
.
.
(:,90) -> t = 10

Please help me to arrange the data as desired. Thank you

Hana

[hana razak]

Hi,

I finally found the way to set the target by referring to this page;

https://www.mathworks.com/matlabcentral/answers/82557-how-to-determine-input-and-target-data-for-classification-in-neural-network

I'm using MATLAB R2015a. To recall, I have the input data, data (1100x90) and target, t (2x90).

Here is how I'm setting the input and target for neural network;

data = horzcat( data{:} ) ;  % data  1100x90 double

% target setting
t = zeros (2, 90);
t (1, 1:40) = ones (1, 40);
t (2, 41:90) = ones (1, 50);    % t 2x90 double

% neural network setting 

[ I N ] = [1100 90]
[ O N ] = [2 90]

net = patternnet(10); 
[net,tr] = train(net,data,t);

Here I got an error,

Too many output arguments.

Error in test_nn (line 24)
[ I N ] = [1100 90]

Please help me!!!

Answer 1

[Greg Heath]

https://www.mathworks.com/matlabcentral/answers/366130-why-does-i-n-o-n-for-the-neural-network-doesn-t-work

Thank you for formally accepting my answer

Greg