MATLAB: How to convert a 3D matrix into 2D matrix

MATLABmatrix

Hi,
I am trying to convert 3000x64x278 into 3000*64 rows and 278 columns.
I do know that it can be done something like this:
for example A is of 3000x64x278 matrix so I can call its first matrix as
B=A(:,:,1);
to change it into 3000*64 that means every column under one column I can do
B=B(:);
so There are more 277 columns to fill, how should I do that?
Thanks.

Best Answer

Use reshape.
>> A = reshape(1:4*3*2,4,3,2) % array of size (4,3,2)
A(:,:,1) =
     1     5     9
     2     6    10
     3     7    11
     4     8    12
A(:,:,2) =
    13    17    21
    14    18    22
    15    19    23
    16    20    24
>> S = size(A);
>> M = reshape(A,[S(1)*S(2),S(3)]) % matrix of size (4*3,2)
M =
     1    13
     2    14
     3    15
     4    16
     5    17
     6    18
     7    19
     8    20
     9    21
    10    22
    11    23
    12    24
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