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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)
486
16
16.10 插入数据表
16.10.1 问题
需要在输出文档中包含计算机生成的数据表。
16.10.2 解决方案
使用 knitr 包中的 kable 函数,此处显示格式化名为 dfrm 的数据框:
library(knitr)
kable(dfrm)
16.10.3 讨论
16.9 节中,我们展示了如何使用纯文本将静态表格放入文档中。这里,我们在数据框
中捕获了表格内容,并且我们希望在文档输出中显示数据。
我们可以输出未格式化的表格:
myTable <- tibble(
x=c(1.111, 2.222, 3.333),
y=c('one', 'two', 'three'),
z=c(pi, 2*pi, 3*pi))
myTable
#> # A tibble: 3 x 3
#> x y z
#> <dbl> <chr> <dbl>
#> 1 1.11 one 3.14
#> 2 2.22 two 6.28
#> 3 3.33 three 9.42
但我们通常想要更具吸引力和格式化的内容。实现这一点的最简单方法是使用 knitr
包中的 kable 函数(参见图 16-9 ):
library(knitr)
kable(myTable, caption = 'My Table')
16-9:一个
kable
表格
kable 函数将数据框作为输入,并且包含许多格式化参数,返回适合显示的格式化表格。
R Markdown
和发表
487
kable 函数产生了很好看的输出,但很多人发现 kable
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Publisher Resources

ISBN: 9787111656814