numpy.
ones
Return a new array of given shape and type, filled with ones.
Shape of the new array, e.g., (2, 3) or 2.
(2, 3)
2
The desired data-type for the array, e.g., numpy.int8. Default is numpy.float64.
numpy.int8
numpy.float64
Whether to store multi-dimensional data in row-major (C-style) or column-major (Fortran-style) order in memory.
Array of ones with the given shape, dtype, and order.
See also
ones_like
Return an array of ones with shape and type of input.
empty
Return a new uninitialized array.
zeros
Return a new array setting values to zero.
full
Return a new array of given shape filled with value.
Examples
>>> np.ones(5) array([1., 1., 1., 1., 1.])
>>> np.ones((5,), dtype=int) array([1, 1, 1, 1, 1])
>>> np.ones((2, 1)) array([[1.], [1.]])
>>> s = (2,2) >>> np.ones(s) array([[1., 1.], [1., 1.]])