Pandas Series: plot.box() function

Last update on September 15 2022 12:57:08 (UTC/GMT +8 hours)

Series-plot.box() function

The plot.box() function is used to create a box plot of the DataFrame columns.
A box plot is a method for graphically depicting groups of numerical data through their quartiles.

Syntax:

Series.plot.box(self, by=None, **kwargs)

Parameters:

Name	Description	Type/Default Value	Required / Optional
by	Column in the DataFrame to group by.	string or sequence	Required
y	Columns to be plotted from the DataFrame.	label or position, default All numeric columns in dataframe	Required
**kwds	Additional keywords are documented in DataFrame.plot().		Optional

Returns: matplotlib.axes.Axes or numpy.ndarray of them.

Example - Draw a box plot from a DataFrame with four columns of randomly generated data:

Python-Pandas Code:

import numpy as np
import pandas as pd
data = np.random.randn(22, 4)
df = pd.DataFrame(data, columns=list('PQRS'))
ax = df.plot.box()

Output:

Previous: Series-plot.barh() function
Next: Series-plot.density() function