numpy.fliplr#
- numpy.fliplr(m)[source]#
Reverse the order of elements along axis 1 (left/right).
For a 2-D array, this flips the entries in each row in the left/right direction. Columns are preserved, but appear in a different order than before.
- Parameters
- marray_like
Input array, must be at least 2-D.
- Returns
- fndarray
A view of m with the columns reversed. Since a view is returned, this operation is \(\mathcal O(1)\).
See also
Notes
Equivalent to
m[:,::-1]
ornp.flip(m, axis=1)
. Requires the array to be at least 2-D.Examples
>>> A = np.diag([1.,2.,3.]) >>> A array([[1., 0., 0.], [0., 2., 0.], [0., 0., 3.]]) >>> np.fliplr(A) array([[0., 0., 1.], [0., 2., 0.], [3., 0., 0.]])
>>> A = np.random.randn(2,3,5) >>> np.all(np.fliplr(A) == A[:,::-1,...]) True