How Can We Split 4D Matrix into two 2D Matrices?

I have a 4D matrix R=[90x360x90x360], how can I split it into two matrices A=[90x360] and B=[90x360]. Thanks in advance.

[Bruno Luong]

You request doesn't make sense: R contains much more than two 2D arrays.

[Ali Raza]

Means it is not possible? Actually I couldn't understand the visualization of 4D matrix. Therefore I wrote wrong question maybe. But didn't you get it? I want to create two [90x360] matrices from [90x360x90x360], tell me is it possible or not?

[Alex Mcaulley]

It is not possible beacuse:

90*360*90*360
ans =
   1.0498e+09
   
2*90*360
ans =
       64800
       

By the way, reshape could be helpful for you

[Guillaume]

Or in other words, you've got 32400 matrices of size 90x360 in a 90x360x90x360 matrix, not just 2.

[Bruno Luong]

In R you have 90 x 360 = 32400 of (90 x 360) matrices. here is one:

R(:,:,12,34)

here is another

R(:,:,56,321)

or

R(:,:,1,1)
R(:,:,90,360)

etc... There are 32400 of them. And you ask to get 2? The count doesn't add up.

We reallly can't help you if you don't know what your data contain, what and how you would use it.