This is documentation for an old release of NumPy (version 1.3.). Read this page Search for this page in the documentation of the latest stable release (version > 1.17).

numpy.ndarray.base

ndarray.base

Base object if memory is from some other object.

Examples

Base of an array owning its memory is None:

>>> x = np.array([1,2,3,4])
>>> x.base is None
True

Slicing creates a view, and the memory is shared with x:

>>> y = x[2:]
>>> y.base is x
True