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
- shapeints, or a single tuple of ints
The size of each dimension of the array can be passed as individual parameters or as the elements of a tuple.
See also
Examples
Dimensions as individual arguments
>>> 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)
Same dimensions - but in a tuple
(3, 2, 1)
>>> 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
()Increment the multi-dimensional index by one.