Boxplots

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• Boxplots give you a sense of the central tendency and spread of the data.
• The line in the center of the box is the median.
• The edges of the box are the first and third quartiles. This makes the length of the box the interquartile range — the middle 50% of your data.
• The whiskers of the boxplot extend to include most of the data. There are many different ways to calculate the length of the whiskers.
• Outliers are points that fall beyond the whiskers. Those points are represented with dots. In the boxplot we’re showing, there are many outliers.

[oldoc63]

• Start with the line inside the box plot (median).

import numpy as np
 
dataset = [4, 8, 15, 16, 23]
dataset_median = np.median(dataset) 
# dataset_median stores the value 15