xtable如何进行单元格着色答案

【问题标题】：how can xtable do cell coloringxtable如何进行单元格着色
【发布时间】：2023-03-26 19:20:01
【问题描述】：

我在 .RMD 文件中有这个表格，我想用条件格式呈现 PDF。目前我正在使用 pandoc。 xtable 如何做到这一点？

 table = data.frame(category = c("A","B","C"), groupA = c(.2,.3,.5), groupB= c(.6,.7,.9))
 table
 pandoc.table(table,split.table = Inf,keep.line.breaks = TRUE)

----------------------------
 category   groupA   groupB 
---------- -------- --------
    A        0.2      0.6   

    B        0.3      0.7   

    C        0.5      0.9   
----------------------------

如何使用条件格式为“groupA”和“groupB”列的单元格着色，例如：

>0 and <= .2    = "green"
>.2 and <= .3    = "red"
>.3 and <= .4    = "blue"
>.4 and <= .5     = "orange"
>.5 and <= .6     = "yellow"
>.6 and <= .7     = "black"
>.7 and <= .8     = "brown"
>.8  = "white"

【问题讨论】：

标签： r r-markdown pandoc

【解决方案1】：

您可以用乳胶代码 (from here) 包装相关的表条目，然后清理 xtable 结果。

例子：

---
header-includes:
   - \usepackage{xcolor, colortbl}
output:
    pdf_document
---

```{r, results="asis"}

library(xtable)
# Your data
tab = data.frame(category = c("A","B","C"), groupA = c(.2,.3,.5), groupB= c(.6,.7,.9))

# Function to cut your data, and assign colour to each range
f <- function(x) cut(x, c(0, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, Inf), 
                      labels=c("green", "red", "blue", "orange", "yellow", "purple", "brown", "white"),
                      include.lowest = FALSE, right = TRUE)

# Apply function to columns: this overwrites your data
tab[c("groupA", "groupB")] <- lapply(tab[c("groupA", "groupB")], function(x)
                                            paste0("\\cellcolor{", f(x), "}", x))
# Sanitise output 
print(xtable(tab), sanitize.text.function = identity)
```

产生

【讨论】：

我收到了这个错误！额外对齐选项卡已更改为 \cr。 \endtemplate
@user3022875 ;我刚刚将答案中的代码复制并粘贴到一个新的 .Rmd 文件中，它按预期运行。您是否添加了任何内容，例如更改了列数或对齐？

【解决方案2】：

你可以看看格式化包

例如

library(formattable)

formattable(table, 
             list(groupA = color_tile("white", "orange"))
           )

https://github.com/renkun-ken/formattable

【讨论】：