如何在针织R代码块的中间插入markdown? [英] How to insert markdown in the middle of an knitr R code chunk?

问题描述

例如，我想在下面的代码块中的两个图之间插入一个中断，而不将其拆分:

For example, I would like to insert a break between each of the two plots in the following code chunk without breaking it up:

```{r}
plot(1:100, 1:100)
plot(1:100, 1:100)
```

结果如下:

```{r}
plot(1:100, 1:100)
````

<br>

```{r}
plot(1:100, 1:100)
```

如果results='asis' 是一个大块选项，则看起来像您可以直接打印<br>命令，例如:

If results='asis' is a chunk option, it looks like you can directly print the <br> command, e.g.:

```{r}
plot(1:100, 1:100)
print('<br>')
plot(1:100, 1:100)
```

我如何处理其他类型的块?

What do I do for other types of chunks?

推荐答案

您可以使用knitr中的函数asis_output()仅按原样输出<br>.因此，例如，您可以执行以下操作:

You can use the function asis_output() in knitr to only output <br> as is. So for instance, you can do this:

```{r}
plot(1:100, 1:100)
asis_output('<br>')
plot(1:100, 1:100)
```

这比对整个块使用results = 'asis'选项要好，因为这两个图不受影响.

This is better than using the results = 'asis' option for the whole chunk because the two plots are not affected.

请注意，如果您要编织成pdf，这也适用于乳胶，但是必须避免反斜线的出现.例如:

Note that this will also work for latex if you are knitting to pdf, but back slashes will have to be escaped. For example:

```{r}
plot(1:100, 1:100)
asis_output("\\\\newline")
plot(1:100, 1:100)
```

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