# Matplotlib Tutorial - Pie Chart

Jinku Hu Feb 15, 2024

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()
``````

Syntax

``````matplotlib.pyplot.pie(
x,
explode=None,
labels=None,
colors=None,
autopct=None,
pctdistance=0.6,
labeldistance=1.1,
startangle=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 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()
``````

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.