Re: [NTG-context] Filter module for R

15 Jun 2020

      Dear Aditya,
...
Le 15 juin 2020 à 01:45, Aditya Mahajan  a écrit :
This is an adapted version of the code that I use for my course where I use the vim module to do the typesetting:
\usemodule[filter]
\usemodule[vim]
\definecolor  [darkblue]   [r=0.1,  g=0.11, b=0.84]
\definecolor  [darkgreen]  [g=0.7]
\definecolor  [lightblue]   [h=87cefa]
\definecolor  [lightgreen]  [g=0.95,b=0.8,r=0.8]
\defineframedtext
 [leftbartext]
 [
   width=local,
   frame=off,
   framecolor=darkblue,
   leftframe=on,
   rulethickness=1ex,
   offset=0.25ex,
   loffset=3ex,
   background=color,
   backgroundcolor=lightblue,
 ]
\definevimtyping
 [RCODE]
 [
   syntax=r,
   directory=output,
   strip=yes,
   escape=yes,
   before={\blank[quarterline]\startleftbartext},
   after={\stopleftbartext},
 ]
\define[1]\ShowOutput
   {\typeRCODEfile{\externalfilterinputfile}
    \startleftbartext[framecolor=darkgreen, backgroundcolor=lightgreen]
      \setupalign[flushleft, verytolerant]
      % range={1,-1} not currently supported
      % See below for details
      \typefile[range={1,-1}]{#1}
    \stopleftbartext}
\defineexternalfilter
 [R]
 [ filtercommand={R CMD BATCH -q --no-timing --save --restore
\externalfilterinputfile\space \externalfilteroutputfile},
    output=\externalfilterbasefile.out,
    directory=output,
    readcommand=\ShowOutput,
    read=no,
    cache=yes,
    purge=yes, % THE COMMA WAS MISSING
  ]
\starttext
Some text...
\startR[read=yes]
  pdf("RPlots/MyHistogram.pdf",5,5)
  X <- rnorm(200,mean=10,sd=2)
  hist(X, col =  "red3" ,  xlab="Score QI" , main="", ylab="fréquence")
\stopR
\externalfigure[RPlots/MyHistogram.pdf][width=.5\textwidth]
\stoptext
Thanks so much for your answer. I had (of course) to install nvim in order the code to work, but this works ! Thanks also for your additional work regarding the locale setting.. this is really deep magic for me. 

I think the facility to run R code directly from context can open ConTeXt to new users. The alliance between R and LaTeX is a winning combination to a lot of my colleagues. Do you think this would be appropriate to do a simple page on the wiki explaining how R code can be done in ConTeXt, with eventual formatting, with some simple examples, or this is too much noise ?

Thanks. Fabrice.

Re: [NTG-context] Filter module for R

Fabrice L