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What is the absolute() function in NumPy?

Onyejiaku Theophilus Chidalu

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

Overview

In NumPy, the absolute() function is used to compute the absolute valueThe absolute value of a number is the distance between the number and 0. This distance will always be a positive number. of each element of an array.

Syntax

numpy.absolute(x, /, out=None, *, where=True)
Syntax for the absolute() function in NumPy

Parameters

This function takes the following parameter values:

  • x: This represents an input array of values. This argument is mandatory.
  • out: This represents the location where the result is stored. This is optional.
  • where: This is the condition over which the input is being broadcast. At a given location where this condition is True, the resulting array will be set to the ufunc result. Otherwise, the resulting array will retain its original value. This is optional.
Note: ufunc is short for universal function and it operates on ndarrays, in an element-wise fashion. It also supports other standard features in NumPy.
  • **kwargs: This represents other keyword arguments. This is mandatory.

Return value

This function returns an array of the same shape as the input array passed to it holding the absolute values of the elements of the input array.

Example

import numpy as np
# creating an input array
x = np.array([-1, 6, -2.5, 2])
# implementing the absolute() function
myarray = np.absolute(x)
print(x)
print(myarray)
Implementing the absolute() function

Explanation

  • Line 1: We import the numpy module.
  • Line 4: We use the array() function to create an array x.
  • Line 7: We call the absolute() function by passing the input array, x as the argument. We assign the result to a variable myarray.
  • Line 9: We print the array  x.
  • Line 10: We print the new array myarray.

RELATED TAGS

function
numpy
python
communitycreator

CONTRIBUTOR

Onyejiaku Theophilus Chidalu

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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