On Fri, 29 Sep 2006, Søren Højsgaard wrote:
I write a package foo which requires a package bar (from CRAN) to work.
So in the DESCRIPTION file I write Depends: bar. I would like it to be
so that when one installs foo, then it is automatically checked whether
bar is installed, and if not then bar is also installed at the same
time. I remember having seen packages which do so, but I can not figure
out the mechanism 'Depends: bar' in the DESCRIPTION file does not solve
the problem. Can anyone help?
It does if you use install.packages(dependencies=TRUE), the default from
the Windows GUI menu.
A related question: How to check programmatically that a specific
package is loaded?
Via search(): there are lots of examples in the R help files. ?termplot
is one.
Best regards
Søren
[[alternative HTML version deleted]]
--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
______________________________________________
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
