configuration for R with ESS + XEmacs
A.J. Rossini
rossini at blindglobe.net
Thu Nov 7 14:54:42 CET 2002
>>>>> "john" == John Gavin <John.Gavin at ubsw.com> writes:
john> Hi,
john> I would like to use Xemacs with John Fox's
john> configuration files as per
john> http://www.socsci.mcmaster.ca/jfox/Books/Companion/ess.pdf
john> I believe that I have followed the instructions in
john> http://www.socsci.mcmaster.ca/jfox/Books/Companion/fox-ESS-config.zip
john> but I need help with a Xemacs Warning that occurs when
john> I load a file with the extension *.Rnw or *.nw into Xemacs.
john> e.g. if I load the sample Rnw file in
john> ...\R\rw1061\library\tools\Sweave\Sweave-test-1.Rnw
john> The warning is
john> "(1) (local-variables/warning) File local-variables error:
john> Symbol's value as variable is void: noweb-font-lock-mode"
This is somewhat harmless; you might M-x noweb-font-lock-mode when you
enter Noweb.
However, I'm noticing that font-lock-mode doesn't stay activated the
way it used to (3 years ago when we wrote the noweb support), so
that's a bug to fix.
john> Apart from the warning, everything seems to work
john> as per the doucmentation except that the ESS
john> menu option is not visible when in a *.Rnw buffer
john> and the usual command dont work
john> e.g. pressing the R toolbar buttons works
john> but C-c C-n to send a line into R is 'not defined'.
For this to work, you have 2 options.
1. If you are only using R within the file for code (which might be
the "usual" case if you are working only with R), you should use the
menus, Noweb -> Modes -> Set Default Code mode , and answer the prompt
with "R-mode" ("r-mode" should work as well).
2. If you are using other languages in the same file, set the mode
using Emacs local variables at the top of the chunk, in a comment in
the first line, i.e.:
<<my chunk to fit linear model>>=
# -*- mode: R -*-
fit1 <- lm(y~x)
fit2 <- lm(this ~ is + a + silly, data=example)
@ %def fit1 fit2
so that if you have C code, you would do something like:
<<my c code function>>=
/* -*- mode: C -*- */
int adder(int x) {
return(x+1)
}
@ %def adder
It's your choice. I've been meaning to write a short function to
prompt for code mode if a default isn't set, but havn't gotten to it
yet...
best,
-tony
--
A.J. Rossini Rsrch. Asst. Prof. of Biostatistics
U. of Washington Biostatistics rossini at u.washington.edu
FHCRC/SCHARP/HIV Vaccine Trials Net rossini at scharp.org
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