Question

使用R Markdown输出pdf。 kable（）工作得很好但是当我添加longtable=T时，标题不再扩展表的整个宽度。我似乎无法找到一个可以控制字幕细节的参数。我可以为每个代码块移动标题输出，但如果可能的话，我宁愿使用kable中的内置功能。</ p>

谢谢！

---
title: "test"
author: ""
date: "September 6, 2017"
output: 
pdf_document: 
latex_engine: xelatex
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = FALSE)
library(kableExtra)
library(knitr)
library(dplyr)
```

```{r table1}
test <- data.frame(col1=rep("MyLongWordsareLong",5),
               col2=rep("MyLongWordsareLong",5),
               col3=rep("MyLongWordsareLong",5),
               col4=rep("MyLongWordsareLong",5),
               col5=rep("MyLongWordsareLong",5),
               col6=rep("MyLongWordsareLong",5))

kable(test,format='latex',booktabs=TRUE,
caption="This is my example caption. See how, when I don't use 
longtable, it extends the full width of the table, but when I use the 
longtable option, it compresses down to only a portion of the table's wdith. 
Is this weird or is it just me?") %>% 
 landscape()

kable(test,longtable=TRUE,format='latex',booktabs=TRUE,caption="This is my 
example caption. See how, when I don't use longtable, it extends the full 
width of the table, but when I use the longtable option, it compresses down 
to only a portion of the table's wdith. Is this weird or is it just me?") 
%>% 
landscape()
```

Answer 1

这可能是longtable包中的LaTeX问题。此页面提供了一种解决方法：https://tex.stackexchange.com/questions/287283/how-to-define-caption-width-in-longtable。只需加上

header-includes:
   - \usepackage{caption}

在您的YAML标题中

，事情会按照您的预期运作。您还可以添加LaTeX代码

\captionsetup{width=5in}

（或使用其他一些指标，例如5cm，\textwidth，\textheight等），以获得其他尺寸的一致字幕宽度。

R Markdown表格标题宽度与kable和longtable

1 个答案: