Message-ID: <Pine.GSO.4.10.10304301708030.26132-100000@quetelet.stat.ucla.edu>
Date: 2003-05-01T02:25:00Z
From: Roger D. Peng
Subject: system.file() and .path.package() incorrect with package versions
The system.file() and .path.package() functions appear to be unaware of
package versions and can return incorrect information or fail if a package
is installed using `installWithVers = TRUE' of install.packages(). For
example, I can run
> install.packages("session", "~/R-local/libs", installWithVers = TRUE)
and
> library(session, version = "1.0.1")
without a problem. However,
> system.file(package = "session")
[1] ""
but
> system.file(package = "session_1.0.1")
[1] "/home/rpeng/R-local/libs/session_1.0.1"
which I kind of expected. Also, .path.package() produces:
> .path.package()
[1] "/home/rpeng/R-local/libs/session_1.0.1"
[2] "/home/rpeng/install/R/lib/R/library/methods"
[3] "/home/rpeng/install/R/lib/R/library/ctest"
[4] "/home/rpeng/install/R/lib/R/library/mva"
[5] "/home/rpeng/install/R/lib/R/library/modreg"
[6] "/home/rpeng/install/R/lib/R/library/nls"
[7] "/home/rpeng/install/R/lib/R/library/ts"
[8] "/home/rpeng/install/R/lib/R/library/base"
but
> .path.package(package = "session")
Error in .path.package(package = "session") :
none of the packages are loaded
This is problematic because many packages run their examples using
system.file() or .path.package() and those will not run when packages are
installed with versions. Also, some packages call .path.package() in
.First.lib(), in which case the package will usually not even load.
> version
_
platform i686-pc-linux-gnu
arch i686
os linux-gnu
system i686, linux-gnu
status
major 1
minor 7.0
year 2003
month 04
day 16
language R
-roger
_______________________________
UCLA Department of Statistics
http://www.stat.ucla.edu/~rpeng