Section: Array Generation and Manipulations
y = flipud(x)
where x
is matrix. If x
is an N-dimensional array then
the first dimension is reversed.
flipud
applied to a 2D matrix.
--> x = int32(rand(4)*10) x = <int32> - size: [4 4] Columns 1 to 4 9 9 6 3 8 0 7 3 1 9 8 5 3 2 3 3 --> flipud(x) ans = <int32> - size: [4 4] Columns 1 to 4 3 2 3 3 1 9 8 5 8 0 7 3 9 9 6 3
For a 3D array, note how the rows in each slice are flipped.
--> x = int32(rand(4,4,3)*10) x = <int32> - size: [4 4 3] (:,:,1) = Columns 1 to 4 3 7 1 7 8 9 7 4 5 0 5 4 3 1 9 6 (:,:,2) = Columns 1 to 4 8 5 5 4 9 6 8 9 2 8 2 4 7 5 3 8 (:,:,3) = Columns 1 to 4 9 7 0 0 4 9 7 1 0 6 2 4 3 3 0 1 --> flipud(x) ans = <int32> - size: [4 4 3] (:,:,1) = Columns 1 to 4 3 1 9 6 5 0 5 4 8 9 7 4 3 7 1 7 (:,:,2) = Columns 1 to 4 7 5 3 8 2 8 2 4 9 6 8 9 8 5 5 4 (:,:,3) = Columns 1 to 4 3 3 0 1 0 6 2 4 4 9 7 1 9 7 0 0