How can I use preamble.tex with R Journal template?

[agila5]

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Hi. I have a problem with the preamble.tex file used in the Rmarkdown rticles template for R Journal Submission. This is the procedure I'm following:

1. Create a new Rmarkdown rticles template for submission to the R Journal.
2. Knit the document and everything seems to be fine.
3. Add some latex code to preamble.tex (like \usepackage{subfig})
4. Knit the document and it doesn't compile anymore.

If I just remove \usepackage{subfig} from preamble.tex then everything works fine. I think the problem is related to the fact that the \usepackage{...} code isn't put in the preamble of the .tex document but I don't know how to fix that.

If you want to test I created I git repo here with all the Rmarkdown files up to point 3 of the previous list. If I knit the Rmd document that I get an error.

I've already asked this question on SO and rstudio community.

xfun::session_info("rticles")
#> R version 3.6.1 (2019-07-05)
#> Platform: x86_64-w64-mingw32/x64 (64-bit)
#> Running under: Windows 10 x64 (build 18362)
#> 
#> Locale:
#>   LC_COLLATE=Italian_Italy.1252  LC_CTYPE=Italian_Italy.1252   
#>   LC_MONETARY=Italian_Italy.1252 LC_NUMERIC=C                  
#>   LC_TIME=Italian_Italy.1252    
#> 
#> Package version:
#>   base64enc_0.1.3 digest_0.6.22   evaluate_0.14   glue_1.3.1     
#>   graphics_3.6.1  grDevices_3.6.1 highr_0.8       htmltools_0.4.0
#>   jsonlite_1.6    knitr_1.26      magrittr_1.5    markdown_1.1   
#>   methods_3.6.1   mime_0.7        Rcpp_1.0.3      rlang_0.4.1    
#>   rmarkdown_1.17  rticles_0.12.2  stats_3.6.1     stringi_1.4.3  
#>   stringr_1.4.0   tinytex_0.17    tools_3.6.1     utils_3.6.1    
#>   xfun_0.11       yaml_2.2.0

^{Created on 2019-11-21 by the reprex package (v0.3.0)}

[yihui]

Sounds like a bug to me. I'll investigate soon. Thanks!

[yihui]

Should be fixed now. Thanks for the report!

Note that you can also include the preamble directly in the Rmd via the preamble field, e.g.

rticles/inst/rmarkdown/templates/rjournal_article/skeleton/skeleton.Rmd

Lines 18 to 20 in c6fddb8

	preamble: |
	% Any extra LaTeX you need in the preamble
	output: rticles::rjournal_article

[agila5]

I just tested it including a \usepackage{subfig} and it works perfectly, thanks!

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