Boolean operators with NumPy
Before, the operational operators like < and >= worked with NumPy arrays out of the box. Unfortunately, this is not true for the boolean operators and, or, and not.
To use these operators with NumPy, you will need np.logical_and(), np.logical_or() and np.logical_not(). Here's an example on the my_house and your_house arrays from before to give you an idea:
np.logical_and(my_house > 13,
your_house < 15)
This exercise is part of the course
Intermediate Python
Exercise instructions
- Generate boolean arrays that answer the following questions:
- Which areas in
my_houseare greater than18.5or smaller than10? - Which areas are smaller than
11in bothmy_houseandyour_house? Make sure to wrap both commands inprint()statement, so that you can inspect the output.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Create arrays
import numpy as np
my_house = np.array([18.0, 20.0, 10.75, 9.50])
your_house = np.array([14.0, 24.0, 14.25, 9.0])
# my_house greater than 18.5 or smaller than 10
# Both my_house and your_house smaller than 11