相关疑难解决方法(0)

我bookdown用来创建pdf报告,但我的表都浮动到页面底部,无论有多少空间.看这个例子:

---
title: "test_doc"
author: "Jake Thompson"
date: "6/30/2017"
output:
  bookdown::pdf_document2:
    toc: false
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = FALSE, collapse = TRUE)
library(tidyverse)
```

# Test heading

Let make a data frame and print it in Table \@ref(tab:test-table)

```{r test-table}
data_frame(col_a = seq_len(5), col_b = rnorm(5), col_c = runif(5)) %>%
  knitr::kable(caption = "This is a test")
```

生成的pdf如下所示:

为什么表格会在页面底部显示？有没有办法防止这种行为？