在 kable 表列中换行长文本

Question

我想在我的 kable 表中包含长文本。下面是一个简单的表格示例，其中的列文本太长，需要换行以使表格适合页面。

---
title: "test"
output: pdf_document
---

```{r setup, include=FALSE}
  library(knitr)
```


This is my test

```{r test, echo=FALSE}
test <- data.frame(v1=c("This is a long string. This is a long string. This is a long string. This is a long string. This is a long string.",
                        "This is a another long string. This is a another long string. This is a another long string. This is a another long string. This is a another long string."),
                   v2=c(1, 2))
kable(test)
```

Answer 1

除了很棒的pander 包之外，另一种解决方案是在kableExtra 中使用column_spec。在这种情况下，下面的代码可以解决问题。

kable(test, "latex") %>%
  column_spec(1, width = "10em")

Answer 2

我创建了pander 包以灵活的方式生成降价表。默认情况下，它将长字符串的单元格拆分为 30 个字符，但是有一堆 global options 和 fn 参数可以覆盖它，启用连字符和其他调整。快速演示：

> pander::pander(test)

-----------------------------------
              v1                v2 
------------------------------ ----
This is a long string. This is  1  
a long string. This is a long      
string. This is a long string.     
    This is a long string.         

This is a another long string.  2  
This is a another long string.     
This is a another long string.     
This is a another long string.     
This is a another long string.     
-----------------------------------

> pander::pander(test, split.cell = 80, split.table = Inf)

------------------------------------------------------------------------------------
                                      v1                                         v2 
------------------------------------------------------------------------------- ----
This is a long string. This is a long string. This is a long string. This is a   1  
                      long string. This is a long string.                           

This is a another long string. This is a another long string. This is a another  2  
  long string. This is a another long string. This is a another long string.        
------------------------------------------------------------------------------------