How to add line numbers to your report

[wlangera]

This is for documentation purposes. It might be handy for review to add line numbers.
This is how:

1. Add instructions to yaml header

header-includes:
  - \usepackage[left]{lineno}
  - \linenumbers

2. Install the lineno package

If you do not have the lineno LaTeX package, you may get this or a similar error when building your report:

LaTeX Error: File `lineno.sty' not found.

This error is saved in a .log file.
You can install this package via the log file by running this code in your console:

tinytex::parse_install("`name_of_your_report_rproject`.log")

If you get an error here, you may need to install a newer version of TinyTeX first (see next point).
Then run the above code again in your console.

3. Updating TinyTeX

You may get a message that TinyTeX has a newer version.
It can also help to update TinyTeX if you are unable to install a package.
You can do this by running this code in your console:

tinytex::reinstall_tinytex()

You can also specify a repository yourself, for example tinytex::reinstall_tinytex(repository = "illinois").