我想知道是否可以在文档开头有一个浮动目录和另一个浮动目录。我目前的首要任务如下：
---
title: "TEST"
author: brettljausn
date: January 15, 2018
output:
html_document:
toc: true
toc_float:
toc_collapsed: true
toc_depth: 3
number_sections: true
theme: lumen
---
# Rest of the sample document: --------
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```
# R Markdown
This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see <http://rmarkdown.rstudio.com>.
When you click the **Knit** button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:
```{r cars}
summary(cars)
```
## Including Plots
You can also embed plots, for example:
```{r pressure, echo=FALSE}
plot(pressure)
```
Note that the `echo = FALSE` parameter was added to the code chunk to prevent printing of the R code that generated the plot.
我尝试过添加另一个toc: true，但这只会向我抛出一条错误消息。提前致谢！
你只需在 toc_float 前面添加 true 即可：
---
title: "TEST"
output:
html_document:
toc: true
toc_float: true
toc_collapsed: true
toc_depth: 3
number_sections: true
theme: lumen
---
另请注意，您的 rmarkdown 文件中有一条注释，它将被解释为标题：
示例文档的其余部分：--------
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