I have a master file master.tex containing the preamble and which inputs (via
\input{chapter01}, \input{chapter02}, ...) chapters. The chapters are .Rnw
files. My goal is to use patchDVI::SweavePDF to compile the chapters (say,
chapter.Rnw) individually (each chapter starts with sourcing Sweave preliminary
settings but [of course] does not have a preamble). When I execute
Rscript -e "patchDVI::SweavePDF('chapter.Rnw')
I obtain
Error: ‘chapter.Rnw’ is not ASCII and does not declare an encoding
Normally one uses \usepackage[utf8]{inputenc} to solve this problem. However, I
can't put this into chapter.Rnw since it is only allowed in the preamble, so in
master.tex. But there it has no effect. The question is how to solve this.
I found this but I couldn't figure out how to adjust it to make it work with patchDVI::SweavePDF.