# R-alpha: Bugs in R-0.50-a1.

**Kurt Hornik
**
Kurt.Hornik@ci.tuwien.ac.at

*Fri, 1 Aug 1997 13:54:36 +0200*

>>>>>* Patrick Lindsey writes:
*
>* Problems in R but not in S:
*>* ---------------------------
*
>* 1) 'unlist' seems to have several other problems than the ones
*>* reported up to now. For instance, 'unlist' can be used on almost any
*>* object in S without much trouble. Eg.:
*S> unlist(c(2))
>* [1] 2
*S>
>* ---
*R> unlist(c(2))
>* Segmentation fault (core dumped)
*>* This occurs in R-0.49 and in R-0.50-a1.
*
Confirmed.
>* 1) The 'R Graphics' window does not have any X class or resource and
*>* therefore cannot be given a default size or geometry. Would it be
*>* possible to give the graphic window a class name so that the size
*>* could be specified in the '.Xdefaults' file?
*
Yes, that would be nice.
>* 3) Some problems occur when using the help. Eg.,
*R> ?"+"
>* sorry, no help for "Arithmetic".
*R>
>* This occurs in R-0.49 and in R-0.50-a1 and seems to be the case for
*>* any item contained in a help file starting with a capital letter.
*
The problem is as follows. The function help() catches the special funs
like "+" etc (more precisely, the arithmetic, comparison, logic and
extract ones) and directly assigns a topic for them.
For "+", the topic is 'Arithmetic". But the index file has no entry for
that, because (see RHOME/etc/install-help)
***********************************************************************
if [ $lib != 'base' ]
##-- The following is NOT done anymore in 'base':
##-- 1) Each help file should have ALIAS(..) for ALL it's objects
##-- 2) The help file name may differ from _ANY_ object (eg 'Special')
then
for file in $FILES
do
echo "$file $file"
done
fi
***********************************************************************
If that really is the intended usage (Martin?), then e.g. the Arithmetic
file should also have ALIAS(Arithmetic) in it.
-k
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