Using outlier limits for filtering

In the previous exercise, you found the limits you will use for categorizing outliers. In this exercise, you'll apply them to the prices distribution to isolate the outliers.

The prices, lower_limit, and upper_limit variables are available from the last exercise.

This exercise is part of the course

Anomaly Detection in Python

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Exercise instructions

Create a boolean mask named is_lower that checks if the values of prices are less than lower_limit.
Create a boolean mask named is_higher that checks if the values of prices are greater than upper_limit.
Combine the masks and use boolean subsetting to filter for outliers.
Print the number of outliers found.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

# Create a mask for values lower than lower_limit
is_lower = ____

# Create a mask for values higher than upper_limit
is_higher = ____

# Combine the masks to filter for outliers
outliers = ____[____]

# Count and print the number of outliers
____

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