N-dimensional arrays are not supported.

Hello All

I have a 3d matrix as below:

[l,r,h3]=size(H)

When I want to write eye(), as follows, I get an error.

Aeq=[H1 -eye(l)]

The error is:

N-dimensional arrays are not supported.

How can I solve it?

thanks

[Azzi Abdelmalek]

What is H1?

Answer 1

[Star Strider]

I have no idea what you’re doing or what result you want, or what ‘H’ or ‘H1’ are.

This runs without error:

H = randi(9,2,2,4);                             % Create ‘H’
[l,r,h3]=size(H);
H1 = H;                                         % Assume ‘H1’ = ‘H’
Aeq=[H1 -repmat(eye(l), 1, 1, h3)]              % Desired Result?

Perhaps some variation on this will work for you if this does not.

[hamed]

Thanks a lot. It did work!

[Star Strider]

My pleasure!

Answer 2

[Konark Kelaiya]

Your H1 or H whatever the variable is 3D matrix however when you get the size of H with [I,r,h3] it will return matrix size values e.g if H is of 2x3x2 matrix then using size(H) returns value as I = 2,r =3 and h3 = 2.

Now when you use eye(I) , it will create identity matrix of 2x2 and not 3 dimensional , hence it wont work

you need to use

   [H1 - eye([I r h3])] 
or [H1 - eye(size(H))]

[hamed]

Hello

Thanks for your help.

I tried that code, but it didn't word! The same error appeared again.