How to get boxplot data for Matplotlib boxplots?

To get boxplot data for Matplotlib boxplot we can take the following steps −

Set the figure size and adjust the padding between and around the subplots.
Make data frame using pandas.
Make a box plot from DataFrame columns.
Get boxplot's outliers, boxes, medians and whiskers data.
Prit all the above information.
To display the figure, use show() method.

Example

import seaborn as sns
import pandas as pd
from matplotlib import pyplot as plt

plt.rcParams["figure.figsize"] = [7.50, 3.50]
plt.rcParams["figure.autolayout"] = True

df = pd.DataFrame(dict(age=[23, 45, 21, 15, 12]))
_, bp = pd.DataFrame.boxplot(df, return_type='both')
outliers = [flier.get_ydata() for flier in bp["fliers"]]
boxes = [box.get_ydata() for box in bp["boxes"]]
medians = [median.get_ydata() for median in bp["medians"]]
whiskers = [whiskers.get_ydata() for whiskers in bp["whiskers"]]

print("Outliers: ", outliers)
print("Boxes: ", boxes)
print("Medians: ", medians)
print("Whiskers: ", whiskers)

plt.show()

Output

Outliers: [array([45])]
Boxes: [array([15., 15., 23., 23., 15.])]
Medians: [array([21., 21.])]
Whiskers: [array([15., 12.]), array([23., 23.])]

Rishikesh Kumar Rishi

Updated on: 2021-06-09T12:42:51+05:30

4K+ Views

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