flipdim

Flipping array along a specified dimension (same as flip)

Usage

flipdim(A)

• It returns an array of the same size as A, whose elements along the first non-singleton dimension have reversed orders.

flipdim(A, dim)

• The output is an array of the same size of A, whose elements along the dim-th dimension have reversed orders.

Examples

• Flipping a 3 dimensional array in 3 different directions.

Input

% Create a 3D array by reshaping the vector 1:8
a = reshape(1:8, 2, 2, [])
a1 = flipdim(a,1)
a2 = flipdim(a,2)
a3 = flipdim(a,3)

Output

a(:, :, 1) = 
 1.0000   3.0000
 2.0000   4.0000

a(:, :, 2) = 
 5.0000   7.0000
 6.0000   8.0000

a1(:, :, 1) = 
 2.0000   4.0000
 1.0000   3.0000

a1(:, :, 2) = 
 6.0000   8.0000
 5.0000   7.0000

a2(:, :, 1) = 
 3.0000   1.0000
 4.0000   2.0000

a2(:, :, 2) = 
 7.0000   5.0000
 8.0000   6.0000

a3(:, :, 1) = 
 5.0000   7.0000
 6.0000   8.0000

a3(:, :, 2) = 
 1.0000   3.0000
 2.0000   4.0000