[英]Print pretty data.frames/tables to console
Is there a way to print small data.frames
to the console in a more readable manner?有没有办法以更易读的方式将小
data.frames
打印到控制台?
For example, would it be possible to output to the console:例如,是否可以输出到控制台:
library(MASS)
iris[1:5, ]
Sepal.Length Sepal.Width Petal.Length Petal.Width Species
1 5.1 3.5 1.4 0.2 setosa
2 4.9 3.0 1.4 0.2 setosa
3 4.7 3.2 1.3 0.2 setosa
4 4.6 3.1 1.5 0.2 setosa
5 5.0 3.6 1.4 0.2 setosa
as作为
iris[1:5, ]
+--------------+-------------+--------------+-------------+---------+
| Sepal.Length | Sepal.Width | Petal.Length | Petal.Width | Species |
+--------------+-------------+--------------+-------------+---------+
1 | 5.1 | 3.5 | 1.4 | 0.2 | setosa |
2 | 4.9 | 3.0 | 1.4 | 0.2 | setosa |
3 | 4.7 | 3.2 | 1.3 | 0.2 | setosa |
4 | 4.6 | 3.1 | 1.5 | 0.2 | setosa |
5 | 5.0 | 3.6 | 1.4 | 0.2 | setosa |
+--------------+-------------+--------------+-------------+---------+
I realise for large data.frames
it would take up an unnecessary amount of time, but if it's an option, I would like to be able to look at small frames in a more structured manner.我意识到对于大型
data.frames
会占用不必要的时间,但如果这是一个选项,我希望能够以更结构化的方式查看小帧。
In particular, when I have two text fields next to each other, it would be much easier with a pipe between the two fields to separate them, as the spacing between words is the same size as the spacing between columns.特别是,当我有两个彼此相邻的文本字段时,在两个字段之间使用管道将它们分开会容易得多,因为单词之间的间距与列之间的间距大小相同。
Thanks谢谢
In case it helps anyone, I just stumbled across the fact that knitr
's kable
achieves a nice pretty print.如果它对任何人有帮助,我只是偶然发现
knitr
的kable
实现了漂亮漂亮的打印。 Combine with some of the .Rprofile
suggestions above, this seems to achieve what I had in mind.结合上面的一些
.Rprofile
建议,这似乎实现了我的想法。
> knitr::kable(head(iris))
| Sepal.Length| Sepal.Width| Petal.Length| Petal.Width|Species |
|------------:|-----------:|------------:|-----------:|:-------|
| 5.1| 3.5| 1.4| 0.2|setosa |
| 4.9| 3.0| 1.4| 0.2|setosa |
| 4.7| 3.2| 1.3| 0.2|setosa |
| 4.6| 3.1| 1.5| 0.2|setosa |
| 5.0| 3.6| 1.4| 0.2|setosa |
| 5.4| 3.9| 1.7| 0.4|setosa |
I had the same problem recently and came across the huxtable
package.我最近遇到了同样的问题,并遇到了
huxtable
包。 It is very flexible and maybe a litte overkill for just nicer console output, but it served me very well.它非常灵活,对于更好的控制台输出来说可能有点矫枉过正,但它非常适合我。
Here is how you could solve your problem using huxtable
:以下是使用
huxtable
解决问题的方法:
library(huxtable)
library(magrittr)
small_iris <- iris[1:5, ]
iris_hux <-
hux(small_iris) %>%
add_colnames() %>%
set_bold(row = 1, col = everywhere, value = TRUE) %>%
set_all_borders(TRUE)
I think all functions speak for themselves.我认为所有功能不言自明。 For a thorough introduction, see https://hughjonesd.github.io/huxtable/huxtable.html#adding-row-and-column-names .
有关详细介绍,请参阅https://hughjonesd.github.io/huxtable/huxtable.html#adding-row-and-column-names 。
print_screen(iris_hux)
yield this output (in the console!): print_screen(iris_hux)
产生此输出(在控制台中!):
I have not figured out yet how to suppress the bottom information on the column names.我还没有想出如何抑制列名的底部信息。 So if someone knows, please comment!
所以如果有人知道,请评论!
EDIT: In order to suppress the column names at the bottom, use colnames = FALSE
inside print_screen()
.编辑:为了抑制底部的列名,请在
print_screen()
内使用colnames = FALSE
。
There are a couple of methods you could try.您可以尝试几种方法。
Add a couple of helper functions to your .Rprofile
.向您的
.Rprofile
添加几个辅助函数。 In my profile, I have在我的个人资料中,我有
hh = function(d) if(class(d)=="matrix"|class(d)=="data.frame") d[1:5,1:5]
This function prints the top left hand corner of the data frame.此函数打印数据框的左上角。 I also have
我也有
ht = function(d, n=6) rbind(head(d, n), tail(d,n))
Create your own S3
print function for data frames, eg为数据框创建您自己的
S3
打印功能,例如
print.data.frame = function(x, ..., digits = NULL, quote = FALSE, right = TRUE, row.names = TRUE) message("hi")
Use a package, eg dplyr
.使用包,例如
dplyr
。 However, this is a bit overkill if all you want is pretty printing.但是,如果您只想要漂亮的打印效果,这有点矫枉过正。
If you are also open to printing your output into the (RStudio) viewer pane rather than the console, I would recommend using the DT
package.如果您也愿意将输出打印到 (RStudio) 查看器窗格而不是控制台,我建议您使用
DT
包。
library(DT)
datatable(iris)
This has several advantages, I think: the output is pretty and well-arranged, the package is able to display large data frames without becoming cumbersome and it is highly customizable to boot.我认为这有几个优点:输出漂亮且排列整齐,包能够显示大数据帧而不会变得笨重,并且可以高度自定义启动。
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