numpy.fliplr()

numpy.fliplr(m) [source]

Flip array in the left/right direction.

Flip the entries in each row in the left/right direction. Columns are preserved, but appear in a different order than before.

Parameters:

Parameters:	m : array_like Input array, must be at least 2-D.
Returns:	f : ndarray A view of `m` with the columns reversed. Since a view is returned, this operation is $\mathcal O(1)$ .

m : array_like

Input array, must be at least 2-D.

Returns:

f : ndarray

A view of m with the columns reversed. Since a view is returned, this operation is $\mathcal O(1)$ .

Notes

Equivalent to A[:,::-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

Links:

https://docs.scipy.org/doc/numpy-1.11.0/reference/generated/numpy.fliplr.html

doc_NumPy

2025-01-10 15:47:30

Comments