knitr and LuaLaTeX

[Dr Eberhard Lisse]

Hi,

I have a LyX/knitR document which is

	Document -> Settings -> Formats
		Default Output Format: PDF (LuaTeX)

produces PDF without issue.

Export to TeX

	latexmk pgf.tex

produces PDF without issue


Export to Rnw

	R -e 'library(knitr);knit("pgf.Rnw")' && latexmk pgf.tex

fails as there is no

	\usepackage[latin9]{luainputenc}

in the Rnw which is however present in the pgf.tex.

Should that not be there as determined by the Default Output Format?

el