How to include in pdf markdown?

[billdenney]

I see the format="pdf" option to qmd(), but I couldn't get it to work for with knitr/rmarkdown in Windows. What is required to insert modelviz output in a .pdf in Windows?

[bguiastr]

Do you have DiagrammeRsvg installed?

[billdenney]

I do. I got an informative error message saying that I needed to install it.

[bguiastr]

Ok I just tried (it's been a while) and I needed to install the package rsvg to have it working. Then the following code should generate a PDF:

qmd(qmd_info = examples$onecomp, save_qmd = TRUE, format = "pdf", file_name = "one_comp.pdf")

[billdenney]

Thanks! That pointed me in the right direction, and the following was able to insert the figure into .pdf output of knitr/rmarkdown. Note that the inclusion of the image file is outside of the code chunk.

    ```{r showmodel}
    foo <- modelviz::qmd(modelviz::examples$gitt,
                         save_qmd=TRUE,
                         format="pdf", file_name="c:/tmp/foo.pdf")
    ```
    
    ![](/tmp/foo.pdf)

[billdenney]

Are the save_qmd and file_name arguments both needed? Could file_name be NULL by default (as it already is) and save_qmd becomes is.null(file_name)?