[R] Rotate array by 90°

[Jeff Newmiller]

?aperm

aperm(A, c(2,1,3) )[,3:1,]

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Sent from my phone. Please excuse my brevity.

On February 5, 2015 1:17:43 PM PST, Karim Mezhoud <kmezhoud at gmail.com> wrote:
>Dear aal,
>
>Is there a way to rotate array or a cube of matrices by Y axis?
>
>
>MatLab example:
>
>A = cat(3,{'a' 'b' 'c';'d' 'e' 'f';'g' 'h' 'i'},{'j' 'k' 'l';'m' 'n'
>'o';'p' 'q' 'r'})
>
>A(:,:,1) =
>
>    'a'    'b'    'c'
>    'd'    'e'    'f'
>    'g'    'h'    'i'
>
>
>A(:,:,2) =
>
>    'j'    'k'    'l'
>    'm'    'n'    'o'
>    'p'    'q'    'r'
>
>Rotate the cell array by 270 degrees.
>
>B = rot90(A,3)
>
>B(:,:,1) =
>
>    'g'    'd'    'a'
>    'h'    'e'    'b'
>    'i'    'f'    'c'
>
>
>B(:,:,2) =
>
>    'p'    'm'    'j'
>    'q'    'n'    'k'
>    'r'    'o'    'l'
>
>
>karim
>
>	[[alternative HTML version deleted]]
>
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