Bookdown "Remark" environment

Question

I'm trying to add numbered remarks (like in the definition or theorem environments) that I could referenced in a bookdown document. Something like:

```{remark, mylab}
my comment
```

In Remark \@ref(rem:mylab) we discussed...

which would produce:

Remark 1.1 my comment

In Remark 1.1 we discussed ...

Would anyone know if this is possible? Also, is it possible to change the numbering to A, B and so on? That is to have instead:

Remark A my comment

In Remark A we discussed ...

Thank you very much!

Answer 1

The general solution is:

• Choose one of the predefined theorem like environments that you are not using otherwise, e.g. example.

• Redefine the printed name for that environment in _bookdown.yml (c.f. https://bookdown.org/yihui/bookdown/internationalization.html) via:

  language:
    label:
      exm: 'Remark '
  

• In your Rmd files use

  ```{example, mylab}
  my comment
  ```
  
  In Remark \@ref(exm:mylab) we discussed...
  

  Note that you have to use example and the correspoding label prefix exm.

I do not know of a general solution to use alphabetic instead of numeric numbering. I am sure that this would be possible if one would use only LaTeX/PDF output.