如何使用 RMarkdown 在 fig.caption 中使用希腊字母?

How to use greek letters in fig.caption using RMarkdown?

当我尝试在 RStudio.

中使用 RMarkdown 编织 pdf 时,此代码产生错误

如何在 fig.caption 中写一个希腊字母,例如 $\beta$?

---
title: "Untitled"
author: "SB"
date: "Thursday, January 29, 2015"
output: 
  pdf_document:
  fig_caption: yes
---


```{r var, echo=FALSE, fig.cap="Cars variation rate between year $t$ and $t-1$ for [=11=] < \beta < 1$"}
plot(cars)
```

在R中,字符串中的所有反斜杠都需要加倍。 "\" 变为 \

试试这个:

---
title: "Untitled"
author: "SB"
date: "Thursday, January 29, 2015"
output: 
  pdf_document:
    fig_caption: yes
---

```{r var, echo=FALSE, fig.cap="Cars variation rate between year $t$ and $t-1$ for [=10=] < \beta < 1$"}
plot(cars)
```