Home Backend Development Python Tutorial Example of how python uses the matplotlib library to draw a pie chart

Example of how python uses the matplotlib library to draw a pie chart

Feb 10, 2017 am 09:37 AM

Python强大的原因之一就在于其开源,有很多优秀的程序员为其提供了丰富的类库。Matplotlib就是其中之一,下面这篇文章主要介绍了python如何利用matplotlib库绘制饼图的方法示例,有需要的朋友们可以参考借鉴,下面来一起看看吧。

介绍

matplotlib 是python最著名的绘图库,它提供了一整套和matlab相似的命令API,十分适合交互式地进行制图。而且也可以方便地将它作为绘图控件,嵌入GUI应用程序中。

它的文档相当完备,并且 Gallery页面 中有上百幅缩略图,打开之后都有源程序。因此如果你需要绘制某种类型的图,只需要在这个页面中浏览/复制/粘贴一下,基本上都能搞定。

这篇文章给大家主要介绍了python用matplotlib绘制饼图的方法,话不多说,下面来看代码。

示例代码


import matplotlib.pyplot as plt

# The slices will be ordered and plotted counter-clockwise.
labels = 'Frogs', 'Hogs', 'Dogs', 'Logs'
sizes = [15, 30, 45, 10]
colors = ['yellowgreen', 'gold', 'lightskyblue', 'lightcoral']
explode = (0, 0.1, 0, 0) # only "explode" the 2nd slice (i.e. 'Hogs')

plt.pie(sizes, explode=explode, labels=labels, colors=colors,
  autopct='%1.1f%%', shadow=True, startangle=90)

# Set aspect ratio to be equal so that pie is drawn as a circle.
plt.axis('equal')


plt.savefig('D:\\pie.png')
plt.show()
Copy after login


结果

更多python利用matplotlib库绘制饼图的方法示例相关文章请关注PHP中文网!


Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

How to solve the permissions problem encountered when viewing Python version in Linux terminal? How to solve the permissions problem encountered when viewing Python version in Linux terminal? Apr 01, 2025 pm 05:09 PM

Solution to permission issues when viewing Python version in Linux terminal When you try to view Python version in Linux terminal, enter python...

How to avoid being detected by the browser when using Fiddler Everywhere for man-in-the-middle reading? How to avoid being detected by the browser when using Fiddler Everywhere for man-in-the-middle reading? Apr 02, 2025 am 07:15 AM

How to avoid being detected when using FiddlerEverywhere for man-in-the-middle readings When you use FiddlerEverywhere...

How to teach computer novice programming basics in project and problem-driven methods within 10 hours? How to teach computer novice programming basics in project and problem-driven methods within 10 hours? Apr 02, 2025 am 07:18 AM

How to teach computer novice programming basics within 10 hours? If you only have 10 hours to teach computer novice some programming knowledge, what would you choose to teach...

How to efficiently copy the entire column of one DataFrame into another DataFrame with different structures in Python? How to efficiently copy the entire column of one DataFrame into another DataFrame with different structures in Python? Apr 01, 2025 pm 11:15 PM

When using Python's pandas library, how to copy whole columns between two DataFrames with different structures is a common problem. Suppose we have two Dats...

How does Uvicorn continuously listen for HTTP requests without serving_forever()? How does Uvicorn continuously listen for HTTP requests without serving_forever()? Apr 01, 2025 pm 10:51 PM

How does Uvicorn continuously listen for HTTP requests? Uvicorn is a lightweight web server based on ASGI. One of its core functions is to listen for HTTP requests and proceed...

How to solve permission issues when using python --version command in Linux terminal? How to solve permission issues when using python --version command in Linux terminal? Apr 02, 2025 am 06:36 AM

Using python in Linux terminal...

How to get news data bypassing Investing.com's anti-crawler mechanism? How to get news data bypassing Investing.com's anti-crawler mechanism? Apr 02, 2025 am 07:03 AM

Understanding the anti-crawling strategy of Investing.com Many people often try to crawl news data from Investing.com (https://cn.investing.com/news/latest-news)...

See all articles