How to change the dimensions of a matrix?

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Shayma Al Ali 2023-4-14

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回答： Dave B 2023-4-14

I have a list of matrices with dimensions of time x latitude x longitude (733x311x720). I'd prefer the matrices to have dimensions of latitude x longitude x time (311x720x733) that way I can concatenate all of them into one matrix and organize them by time. Is there any way I can do this? I read about reshape but I'm not sure it'll do what I want.

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Answer 1

Dave B 2023-4-14

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You could use permute to do this, though it's maybe worth noting that you can concatenate matrices regardless of the shape (you might want the cat function to help)

x=reshape(1:24,3,4,2);
y=permute(x, [3 1 2])
y = 
y(:,:,1) =

     1     2     3
    13    14    15


y(:,:,2) =

     4     5     6
    16    17    18


y(:,:,3) =

     7     8     9
    19    20    21


y(:,:,4) =

    10    11    12
    22    23    24