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R 语言经典实例(原书第 2 版)
book

R 语言经典实例(原书第 2 版)

by J.D. Long, Paul Teetor
June 2020
Beginner to intermediate
522 pages
9h 6m
Chinese
China Machine Press
Content preview from R 语言经典实例(原书第 2 版)
249
10
图形
图形是 R 的一个强大功能。添加包 graphics R 标准发布版的一部分,它包含许多
有用的函数用于创建各种图形。ggplot2 扩展了基本功能并使其更容易,ggplot2
tidyverse 包的一部分。在本章中,我们将重点介绍使用 ggplot2 的示例,我们偶尔会
建议使用其他包。在本章的“另请参阅”部分中,我们提到了以不同方式执行相同工作
的其他包中的函数。如果你对 ggplot2 或基本的图形提供的内容不满意,我们建议你
探索这些替代方案。
图形是一个广泛的主题,我们只能在这里做一下粗浅的论述。Winston Chang
R
Graphics Cookbook
(第 2 )(
https://oreil.ly/2IhNUQj
), O
Reilly Cookbook 系列
的一部分,并介绍了许多有用的方法,ggplot2 包是其中的重点。如果你想深入研究,
我们推荐 Paul Murrell
R Graphics
Chapman & Hall)。这本书讨论了 R 图形背后的原
理,说明如何使用图形函数,并包含大量示例,包括创建该书中图形的代码。有些例子
非常令人惊叹。
说明
本章中的图表大多是简单明了的。这是我们有意为之的。当你调用 ggplot 函数时,如:
library(tidyverse)
df <- data.frame(x = 1:5, y = 1:5)
ggplot(df, aes(x, y)) +
geom_point()
你将获得 x
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Publisher Resources

ISBN: 9787111656814