Why does [ I N ] & [ O N ] for the neural network doesn't work??

Hi,

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

I'm not sure how to set the target but I've found the way to set the target by referring from this page;

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

Am I doing the right approach in setting the target?

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, 1:45) = ones (1,45);
t (2, 46:90) = ones (1, 45);    % t 2x90 double

% neural network setting 

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

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

I've only reached here and I got this error.

Too many output arguments.

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

Please help me to resolve this error.

Thank you

Hana

Answer 1

[Greg Heath]

% I don't know why, but that method of multiple variable assignment is only defined for functions

>> x = 0, y = 0

x = 0

y = 0

>> [ x y ] = [ 1 2 ]

Too many output arguments.

>> [ x y ] = [ 1, 2 ]

Too many output arguments.

>> [ x, y ] = [ 1, 2 ]

Too many output arguments.

>> [ x, y ] = [ 1 2 ]

Too many output arguments.

Hope this helps.

Thank you for formally accepting my answer

Greg

[hana razak]

Thanks for your quick reply.

Well, this is my first project using MATLAB. May you explain in details for 'multiple variable assignments is only defined for functions'? And I also don't really get what does this code means.

>> x = 0, y = 0

x = 0

y = 0

>> [ x y ] = [ 1 2 ]

Too many output arguments.

>> [ x y ] = [ 1, 2 ]

Am I on the right track in setting the input and target for the neural network?

What should I do to avoid from getting the same error then?

Thank you

Regards

Hana

[Greg Heath]

EDITED QUESTIONS:

Q1. This is my first project using MATLAB. Will you please explain, in detail, why "multiple variable assignments" are only defined for functions'?

A. I don't know.

Q2. Also, I don't really get what this code means.

A. It just means that your syntax is incorrect.

Q3. What should I do to avoid from getting the same error?

A. Don't use that syntax. I have demonstrated 4 versions and they are all unacceptable.

Use the versions I use in my codes.

Hope this helps.

Greg

[hana razak]

Thank you very much for your answers. You really help me a lot.