On 05.03.2010 10:51, Grześ wrote:

Hi
I have installed rpart in my Linux (PLD) but I don't know how I may find
help conect this package?

Here is my instalaction:

  install.packages("rpart",dependencies=TRUE)
--- Please select a CRAN mirror for use in this session ---
trying URL 'http://r.meteo.uni.wroc.pl/src/contrib/rpart_3.1-46.tar.gz'
Content type 'application/x-gzip' length 136572 bytes (133 Kb)
opened URL
==================================================
downloaded 133 Kb

* installing *source* package‘rpart’ ...
** libs
i686-pld-linux-gcc -std=gnu99 -I/usr/lib/R/include  -D_FORTIFY_SOURCE=2
-fpic  -O2 -fno-strict-aliasing -fwrapv -march=i686 -mtune=pentium4
-gdwarf-2 -g2  -c anova.c -o anova.o
i686-pld-linux-gcc -std=gnu99 -I/usr/lib/R/include  -D_FORTIFY_SOURCE=2
-fpic  -O2 -fno-strict-aliasing -fwrapv -march=i686 -mtune=pentium4
-gdwarf-2 -g2  -c anovapred.c -o anovapred.o
.
.
.
usersplit.o xval.o -L/usr/lib/R/lib -lR
** R
** data
**  moving datasets to lazyload DB
** inst
** preparing package for lazy loading
** help
*** installing help indices
** building package indices ...
* DONE (rpart)

The downloaded packages are in
     ‘/root/tmp/RtmpxWZkKu/downloaded_packages’
Updating HTML index of packages in '.Library'


next I do:
library(rpart)

and as result I get:

help(rpart)
/usr/lib/R/bin/pager[11]: /usr/bin/less: not found

Could somebody help me, please?


Your Linux installation is broken:
your pager is linked to less which seems to be unavailable. Hence installing less or reconfiguring your default pager will solve the problem (which is not an R problem).

Uwe Ligges



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