The R markdown looks like this.
processing file: bpas.spin.Rmd
|......................................................................| 100%
ordinary text without R code
output file: bpas.knit.md
"C:/Users/Blue/ANACON~1/envs/rstudio/Scripts/pandoc" +RTS -K512m -RTS bpas.utf8.md --to latex --from markdown+autolink_bare_uris+tex_math_single_backslash --output bpas.tex --lua-filter "C:\Users\Blue\Documents\R\win-library\3.6\rmarkdown\rmarkdown\lua\pagebreak.lua" --lua-filter "C:\Users\Blue\Documents\R\win-library\3.6\rmarkdown\rmarkdown\lua\latex-div.lua" --self-contained --highlight-style tango --pdf-engine pdflatex --variable graphics --variable "geometry:margin=1in"
Output created: bpas.pdf