Question

下面的代码会创建一个小表。我不清楚如何进行这些改变：

1）两个条之间的空白较小。使用Inspect Element我可以在.table＆gt; tfoot＆gt; tr＆gt; td中将填充从8px更改为3px。这是正确的方法吗？如果是这样，我如何将相应的CSS添加到我的R脚本？

2）去除彩条的圆角。同样，inspect元素显示如果我更改border_radius：0px和padding-right：0px，则每个单元格都会发生更改。但同样，这似乎并不正确。

3）如何更改包含条形图的单元格中文本字体的颜色？

library(formattable)
library(kableExtra)
library(knitr)

fraction <- function(x, df) {
  x/df$count
}

df <- tibble (
  Type = c("A", "B", "C"),
  count = c(500, 350, 860),
  Decreasing = c(226, 103, 507),
  Increasing = c(300, 250, 350)
) 


mutate(df,
       Decreasing = color_bar(color = "lightgrey", fun = "fraction", df)(Decreasing),
       Increasing = color_bar(color = "lightgreen", fun = "fraction", df)(Increasing)
) %>% 
  select(Type, Decreasing, Increasing) %>% 

  kable("html", escape = "F", align = c("l", "r", "l")) %>% 
  kable_styling(bootstrap_options = c("striped", "hover", "responsive"), full_width = F, position = "float_left")

Answer 1

color_bar来自formattable软件包，但好消息是您可以定义自己的color_bar函数（只需在R控制台中键入color_bar即可源代码color_bar，然后您可以修改它）。它将解决您的问题2＆amp; 3.

color_bar2 <- function (color = "lightgray", fun = "proportion", ...) 
{
  fun <- match.fun(fun)
  formatter(
    "span", 
    style = function(x) style(
      display = "inline-block", 
      direction = "rtl", `border-radius` = "0px", `padding-right` = "2px", 
      `background-color` = csscolor(color), color = csscolor("red"),
      width = percent(fun(as.numeric(x), ...))))
}

mutate(df,
       Decreasing = color_bar2(color = "lightgrey", fun = "fraction", df)(Decreasing),
       Increasing = color_bar2(color = "lightgreen", fun = "fraction", df)(Increasing)
) %>% 
  select(Type, Decreasing, Increasing) %>% 

  kable("html", escape = "F", align = c("l", "r", "l")) %>% 
  kable_styling(bootstrap_options = c("striped", "hover", "responsive"), full_width = F, position = "float_left")

对于问题1，如果您要在rmarkdown中呈现表格，请查看此页面https://rmarkdown.rstudio.com/html_document_format.html#custom_css，了解如何在rmarkdown中使用custom_css。

Answer 2

如果你不介意另一个包（我自己的）：

library(tibble)
library(dplyr)
library(huxtable)
df <- tibble (
  Type = c("A", "B", "C"),
  count = c(500, 350, 860),
  Decreasing = c(226, 103, 507),
  Increasing = c(300, 250, 350)
) 

ht <- as_hux(df) 
ht %>% 
       select(Type, Decreasing, Increasing) %>% 
       set_all_padding('3px') %>% 
       set_text_color(everywhere, 2:3, "red") %>% 
       add_colnames()

但这并不能让你获得彩条。（嗯，也许我应该添加一个函数。）你可以通过......那样的东西：

my_color_bar <- color_bar(color = "lightgrey", fun = "fraction", df)

ht %>% 
  select(Type, Decreasing, Increasing) %>% 
  set_all_padding('3px') %>% 
  set_text_color(everywhere, 2:3, "red") %>% 
  set_escape_contents(everywhere, 2:3, TRUE) %>% 
  set_number_format(everywhere, 2:3, list(my_color_bar)) %>% 
  add_colnames()

具有格式化格式问题的kableExtra

2 个答案: