How to display verbatim inline r code with backticks using Rmarkdown?

Question

By doubling the backticks in Markdown, it is easy to render some text in code style including the backticks, such as: ``r 2+2``. But how to do that with RMarkdown ? By the same way we can display ``t 2+2``, but replacing `t` with `r` executes the R code `2+2`. The only way I have found so far is: ```

`r 2+2`

``` Not very convenient. Maybe I should define a new css for doing that more conveniently ?

Accepted Answer

Here is a trick that I use. First, note `\x60` is ```:

```
> cat('\x60', '
')
` 
```

Then you write

```
`r '\x60r foo+bar\x60'`
```

which will give you ``r foo+bar`` in the markdown output, but that will become `r foo+bar` in the HTML output, so you need to protect the backticks in markdown, using two (or more) backticks. Then you end up with this hairball:

```
`` `r '\x60r foo+bar\x60'` ``
```

Your own solution is good, but I'd just define

````
rinline <- function(code) {
  sprintf('``` `r %s` ```', code)
}
````

Also see this post for another trick.

How to display verbatim inline r code with backticks using Rmarkdown?

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