How to Convert a 3D Matrix into Cell Array of Desire Dimension

I have a matrix of N x M x Z 3D matrix. Where N x M is 2 x 100 and Z is 500. I want to convert it into cell array of Z x 1 ( 500 x 1) where each cell element will be N x M (2 x 100). How I can do this?

Answer 1

[Paul]

A = rand(2,100,500); % example data
C = squeeze(num2cell(A,[1 2])); % create cell array
whos C

  Name        Size             Bytes  Class    Attributes

  C         500x1             852000  cell               

isequal(cat(3,C{:}),A)  % verify

ans = logical
   1

[Muhammad]

@Paul what if I have 500 x 2 x 100 matrix to 500x1 cell array of 2x100 in each cell?

[Paul]

A = rand(500,2,100);
C = num2cell(A,[2 3]);  % line 1

At this point, each elment of C is 1 x 2 x 100 and is isequal to the corresponding slice of A. For example

size(C{293})

ans = 1×3

1 2 100

isequal(C{293},A(293,:,:))

ans = logical
   1

To make each cell 2 x 100

C = cellfun(@(c) squeeze(c),C,'UniformOutput',false); % line 2
size(C)

ans = 1×2

500 1

size(C{293})

ans = 1×2

2 100

isequal(C{293},squeeze(A(293,:,:)))

ans = logical
   1

Lines 1 and 2 can be combined into a single line if desired.

There may be a better way to do this.