Thanks, Douglas and Brian~ @Brian: I try to put ; font-lock for noweb (require 'noweb-font-lock-mode) in my .emacs, but it still doesn't work on my laptop.. Regards Tengfei On Tue, Sep 14, 2010 at 12:33 PM, Brian Diggs wrote: > On 9/13/2010 10:36 AM, Tengfei Yin wrote: > >> Hi dear all, >> >> In a R code chunk, when I use data frame 's $ accessor to subset it, I >> have >> to put another $ in the comment, or the latex will treated as math mode? >> >> >> df[df$X_STATE==6,'X_STATE']<- 'CA' # $ >> >> >> My system: >> >> Ubuntu 10.04 64 bit, emacs 23.1.1, ess 5.11-1 >> >> Thanks >> >> Tengfei >> > > Tengfei, > > I had that problem too, and then I discovered noweb-font-lock-mode which > fixed it. I just added: > > ; font-lock for noweb > (require 'noweb-font-lock-mode) > > to my init.el file. > > -- > Brian S. Diggs, PhD > Senior Research Associate, Department of Surgery > Oregon Health & Science University > -- Tengfei Yin MCDB PhD student 1620 Howe Hall, 2274, Iowa State University Ames, IA,50011-2274 Homepage: www.tengfei.name [[alternative HTML version deleted]]