numpy.atleast_2d(*arys)[source]¶View inputs as arrays with at least two dimensions.
One or more array-like sequences. Non-array inputs are converted to arrays. Arrays that already have two or more dimensions are preserved.
An array, or list of arrays, each with a.ndim >= 2.
Copies are avoided where possible, and views with two or more
dimensions are returned.
See also
Examples
>>> np.atleast_2d(3.0)
array([[3.]])
>>> x = np.arange(3.0)
>>> np.atleast_2d(x)
array([[0., 1., 2.]])
>>> np.atleast_2d(x).base is x
True
>>> np.atleast_2d(1, [1, 2], [[1, 2]])
[array([[1]]), array([[1, 2]]), array([[1, 2]])]