更改knitr :: kable标头的背景颜色 [英] Change background colour of knitr::kable headers
问题描述
我需要更改用knitr :: kable打印的表格标题的背景颜色.我可以使用kableExtra::column_spec
更改整个列的背景,但这不会影响标题行:
I need to change the background colour of the headers of a table printed with knitr::kable. I can use kableExtra::column_spec
to change the background of a whole column, but it doesn't affect the header row:
library(knitr)
library(kableExtra)
kable(data.frame(a = 1, b = 2)) %>%
column_spec(1, background = "yellow")
想要的结果:
kable
输出,其中a
列的标题为黄色背景(表的其余部分为白色背景).
Wanted outcome:
A kable
output where the header of column a
has a yellow background (and the rest of the table a white background).
推荐答案
您可以使用cell_spec
进行此操作.例如,
You can do this using cell_spec
. For example,
df <- data.frame(a = 1, b = 2)
names(df)[1] <- cell_spec(names(df)[1], background = "yellow")
kable(df, escape = FALSE)
对我来说,这不会自动显示在RStudio中;您需要通过kableExtra
函数对其进行管道传递.例如,此管道除了标记要显示的表外什么也不做.
This doesn't display automatically in RStudio for me; you need to pipe it through a kableExtra
function to do that. For example, this pipe does nothing except to mark the table to display.
kable(df, escape = FALSE) %>% column_spec(1)
将显示
另一种方法是将包括标题的整个列设置为黄色,然后将非标题部分设置为继承的颜色.您是这样做的:
Another way to do it is to set the whole column including the header to yellow, then set the non-header part to the inherited colour. You do that like this:
kable(df) %>%
column_spec(1, background = "yellow", include_thead = TRUE) %>%
column_spec(1, background = "inherit")
此代码最终以凌乱的HTML开头,但间距看起来更好一些:
This one ends up with messy HTML, but the spacing looks a bit better:
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