ones

sparse.ones(shape, dtype=<class 'float'>, format='coo', **kwargs)[source]

Return a SparseArray of given shape and type, filled with ones.

Parameters:
  • shape (int or tuple of ints) – Shape of the new array, e.g., (2, 3) or 2.

  • dtype (data-type, optional) – The desired data-type for the array, e.g., numpy.int8. Default is numpy.float64.

  • format (str, optional) – A format string.

  • compressed_axes (iterable, optional) – The axes to compress if returning a GCXS array.

Returns:

out – Array of ones with the given shape and dtype.

Return type:

SparseArray

Examples

>>> ones(5).todense()  
array([1., 1., 1., 1., 1.])
>>> ones((2, 2), dtype=int).todense()  
array([[1, 1],
       [1, 1]])