NumPy

numpy.ndindex

class numpy.ndindex(*shape)[source]

An N-dimensional iterator object to index arrays.

Given the shape of an array, an ndindex instance iterates over the N-dimensional index of the array. At each iteration a tuple of indices is returned, the last dimension is iterated over first.

Parameters
`*args`ints

The size of each dimension of the array.

See also

ndenumerate, flatiter

Examples

>>> for index in np.ndindex(3, 2, 1):
...     print(index)
(0, 0, 0)
(0, 1, 0)
(1, 0, 0)
(1, 1, 0)
(2, 0, 0)
(2, 1, 0)

Methods

ndincr(self)

Increment the multi-dimensional index by one.

next(self)

Standard iterator method, updates the index and returns the index tuple.

Previous topic

numpy.nditer.reset

Next topic

numpy.ndindex.ndincr