r markdown：数据框（或data.table）超出页面

Question

我正在尝试使用 R - markdown 创建 HTML 输出。问题是每当我尝试输出任何表格时，格式都非常稀疏。理想情况下，表格应该很容易适应一页宽度，但由于格式过于稀疏，需要向右滚动才能看到输出。

这是代码和输出。

```{r}
df = data.frame(
  first.var = 1:10, 
  second.var = letters[1:10],
  third.var = LETTERS[1:10],
  fourth.var = paste0(letters[1:10],"-",LETTERS[1:10]),
  fifth.var = "this will not go out of screen",
  sixth.var = "but this will go out of the screen"
)
df
```

如何在一页宽度中容纳更多列，这样我就不必滚动了。

Answer 1

尝试设置表格的样式 (CSS)。我把桌子包裹成DT::datatable：

<div style="width = 100%">
```{r}
df = data.frame(
  first.var = 1:10, 
  second.var = letters[1:10],
  third.var = LETTERS[1:10],
  fourth.var = paste0(letters[1:10],"-",LETTERS[1:10]),
  fifth.var = "this will not go out of screen",
  sixth.var = "but this will go out of the screen"
)
DT::datatable(df)
```
</div>