RStudio is an excellent IDE for R. However, using Chinese in default setting of Rmd to output a PDF document is always annoying. Well, the source is tex.
RStudio uses knitr to covert the Rmd document into md document. Then it uses Pandoc to convert the md document into tex document. Then they actually use tex engine such as pdflatex or xelatex to get PDF document.
Why Chinese would not display? This issue happens at the last step. By default, some templates such as beamer in …