If one wants to unload compiled code for a package containing a namespace, my
understanding is that .onUnload() should be used, with a call to
library.dynam.unload(). This is used in e.g., the stats and methods packages,
but it appears to me that the compiled code is not being unloaded when the
package is detached(). Am I misunderstanding something?
Best,
Jim
> search()
[1] ".GlobalEnv" "package:methods" "package:stats"
"package:graphics"
[5] "package:grDevices" "package:utils" "package:datasets" "Autoloads"
[9] "package:base"
> stats:::.onUnload
function (libpath)
library.dynam.unload("stats", libpath)
<environment: namespace:stats>
> getLoadedDLLs()
Filename Dynamic.Lookup
base base FALSE
iconv C:/rw2030dev/modules/iconv.dll TRUE
grDevices C:/rw2030dev/library/grDevices/libs/grDevices.dll FALSE
stats C:/rw2030dev/library/stats/libs/stats.dll FALSE
methods C:/rw2030dev/library/methods/libs/methods.dll FALSE
> detach(3)
> search()
[1] ".GlobalEnv" "package:methods" "package:graphics"
"package:grDevices"
[5] "package:utils" "package:datasets" "Autoloads" "package:base"
> getLoadedDLLs()
Filename Dynamic.Lookup
base base FALSE
iconv C:/rw2030dev/modules/iconv.dll TRUE
grDevices C:/rw2030dev/library/grDevices/libs/grDevices.dll FALSE
stats C:/rw2030dev/library/stats/libs/stats.dll FALSE
methods C:/rw2030dev/library/methods/libs/methods.dll FALSE
> R.version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status Under development (unstable)
major 2
minor 3.0
year 2006
month 01
day 01
svn rev 36947
language R
version.string Version 2.3.0 Under development (unstable) (2006-01-01 r36947)
James W. MacDonald
Affymetrix and cDNA Microarray Core
University of Michigan Cancer Center
1500 E. Medical Center Drive
7410 CCGC
Ann Arbor MI 48109
734-647-5623
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