dask.array.less — Dask documentation (original) (raw)

This docstring was copied from numpy.less.

Some inconsistencies with the Dask version may exist.

Return the truth value of (x1 < x2) element-wise.

Parameters

x1, x2array_like

Input arrays. If x1.shape != x2.shape, they must be broadcastable to a common shape (which becomes the shape of the output).

outndarray, None, or tuple of ndarray and None, optional

A location into which the result is stored. If provided, it must have a shape that the inputs broadcast to. If not provided or None, a freshly-allocated array is returned. A tuple (possible only as a keyword argument) must have length equal to the number of outputs.

wherearray_like, optional

This condition is broadcast over the input. At locations where the condition is True, the out array will be set to the ufunc result. Elsewhere, the out array will retain its original value. Note that if an uninitialized out array is created via the defaultout=None, locations within it where the condition is False will remain uninitialized.

**kwargs

For other keyword-only arguments, see theufunc docs.

Returns

outndarray or scalar

Output array, element-wise comparison of x1 and x2. Typically of type bool, unless dtype=object is passed. This is a scalar if both x1 and x2 are scalars.

Examples

import numpy as np
np.less([1, 2], [2, 2])
array([ True, False])

The < operator can be used as a shorthand for np.less on ndarrays.

a = np.array([1, 2])
b = np.array([2, 2])
a < b
array([ True, False])