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I am trying to render the syntax for chunks of code in RMarkdown to a pdf. The final output should look like
```{r}
#some code
```
Rather than just
#some code
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If you don't want any code chunks to run you can add eval = FALSE in your setup chunk with knitr::opts_chunk$set() . If you want only some chunks to run you can add eval = FALSE to only the chunk headers of those you don't want to run.
The way to escape a special character is to add a backslash before it, e.g., I do not want \_italic text\_ here . Similarly, if # does not indicate a section heading, you may write \# This is not a heading . As mentioned in Section 4.12, a sequence of whitespaces will be rendered as a single regular space.
The shortcut to interrupt a running process in R depends on the R software and the operating system you are using. However, if you are using RStudio on a Windows computer, you can usually use Esc to stop a currently executing R script. Then, we can press Esc to interrupt the loop.
In these situations, we could consider using the knit_exit() function in a code chunk, which will end the knitting process after that chunk. Normally you have to wait for 100 seconds, but since we have called knit_exit() , the rest of the document will be ignored.
The best options to answer this can be found on the RStudio website. See the article on getting verbatim R chunks into rmarkdown http://rmarkdown.rstudio.com/articles_verbatim.html
My preferred solution is to add an inline R code at the end of the first line to make the chunk appear correctly in the output like so:
```{r eval=TRUE}` r ''`
seq(1, 10)
```
Which produces
```{r eval=TRUE}
seq(1:10)
```
Rather than
## [1] 1 2 3 4 5 6 7 8 9 10
Another way to do the same thing is treat the code chunk as a string (I don't usually use the -> operator but in this case I think this improves readability):
```{r comment = ""}
"{r eval=TRUE}
seq(1, 10)
" -> my_code_string
cat("```", my_code_string, "```", sep = "")
```
Which outputs:
```{r eval=TRUE}
seq(1, 10)
```
This question is also a possible duplicate of How to embed and escape R Markdown code in a R Markdown document
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