numpy.
flipud
Flip array in the up/down direction.
Flip the entries in each column in the up/down direction. Rows are preserved, but appear in a different order than before.
Input array.
A view of m with the rows reversed. Since a view is returned, this operation is
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See also
fliplr
Flip array in the left/right direction.
rot90
Rotate array counterclockwise.
Notes
Equivalent to m[::-1,...]. Does not require the array to be two-dimensional.
m[::-1,...]
Examples
>>> A = np.diag([1.0, 2, 3]) >>> A array([[1., 0., 0.], [0., 2., 0.], [0., 0., 3.]]) >>> np.flipud(A) array([[0., 0., 3.], [0., 2., 0.], [1., 0., 0.]])
>>> A = np.random.randn(2,3,5) >>> np.all(np.flipud(A) == A[::-1,...]) True
>>> np.flipud([1,2]) array([2, 1])