Matplotlib Tutorial - Pie Chart

Jinku Hu Feb 15, 2024 Matplotlib Matplotlib Pie Chart

Matplotlib Pie Chart
Matplotlib Pie Chart in Clockwise Direction
Matplotlib Pie Chart With Explode Slice

We will learn pie chart in this tutorial.

Matplotlib Pie Chart

# -*- coding: utf-8 -*-
import matplotlib.pyplot as plt


x = np.array([15, 25, 30, 40])
label = ["France", "Germany", "Uk", "US"]

plt.pie(x, labels=label)
plt.show()

Matplotlib Pie Chart

Syntax

matplotlib.pyplot.pie(
    x,
    explode=None,
    labels=None,
    colors=None,
    autopct=None,
    pctdistance=0.6,
    shadow=False,
    labeldistance=1.1,
    startangle=None,
    radius=None,
    counterclock=True,
    wedgeprops=None,
    textprops=None,
    center=(0, 0),
    frame=False,
    hold=None,
    data=None,
)

Parameters

Name	Description
`label`	label text
`fontdict`	label text font dictionary, like family, color, weight and size
`labelpad`	Spacing in points between the label and the x-axis

Matplotlib Pie Chart in Clockwise Direction

If the argument counterclock is set to be False, then the pie chart will be drawn in clockwise direction.

# -*- coding: utf-8 -*-
import matplotlib.pyplot as plt


x = np.array([15, 25, 30, 40])
label = ["France", "Germany", "Uk", "US"]

plt.pie(x, labels=label, counterclock=False)
plt.show()

Matplotlib Pie Chart - Clockwise

Matplotlib Pie Chart With Explode Slice

The explode parameter controls the explode of slices in pie charts. It specifies the fraction of the radius with which offset each wedge.

# -*- coding: utf-8 -*-
import matplotlib.pyplot as plt


x = np.array([15, 25, 30, 40])
label = ["France", "Germany", "Uk", "US"]

plt.pie(x, labels=label, explode=(0.2, 0, 0, 0))
plt.show()

Matplotlib Pie Chart - Explode

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Author: Jinku Hu

Founder of DelftStack.com. Jinku has worked in the robotics and automotive industries for over 8 years. He sharpened his coding skills when he needed to do the automatic testing, data collection from remote servers and report creation from the endurance test. He is from an electrical/electronics engineering background but has expanded his interest to embedded electronics, embedded programming and front-/back-end programming.

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