In the R/ subdirectory of testpkg/ I have a file called testpkg.R which contains the following two lines:
setClass("testpkg", representation(pts = "list")) setAs("testpkg", "numeric", function(from, to) as.numeric(unlist(from)))
Then, in the main testpkg/ directory I have an empty `install.R' file and a dummy DESCRIPTION file (as well as an empty man/ subdirectory).
When I run `R CMD INSTALL testpkg' I get the following output:
marla:> R CMD INSTALL testpkg * Installing *source* package 'testpkg' ... ** R ** save image [1] "testpkg" Loading required package: testpkg Loading required package: testpkg Loading required package: testpkg Loading required package: testpkg Loading required package: testpkg Loading required package: testpkg Loading required package: testpkg Loading required package: testpkg Loading required package: testpkg Loading required package: testpkg Loading required package: testpkg Error during wrapup: evaluation is nested too deeply: infinite recursion? Loading required package: testpkg Error in options(x) : evaluation is nested too deeply: infinite recursion? Error: evaluation is nested too deeply: infinite recursion? Error: evaluation is nested too deeply: infinite recursion? Error: evaluation is nested too deeply: infinite recursion? Error: evaluation is nested too deeply: infinite recursion? Error: evaluation is nested too deeply: infinite recursion? Error: evaluation is nested too deeply: infinite recursion? Error: evaluation is nested too deeply: infinite recursion? Error: evaluation is nested too deeply: infinite recursion? Error: evaluation is nested too deeply: infinite recursion? Error: evaluation is nested too deeply: infinite recursion? Error: evaluation is nested too deeply: infinite recursion? Error: evaluation is nested too deeply: infinite recursion? Execution halted ERROR: execution of package source for 'testpkg' failed ** Removing '/home/rpeng/install/R-beta/lib/R/library/testpkg'
Is this expected? Did I specify something incorrectly?
If I remove the setAs() call, everything installs fine. Furthermore, if I include a line like:
setAs("numeric", "testpkg", function(from, to) list())
that doesn't seem to cause a problem. I only get the infinite recursion problem when the first argument to setAs() is the new class "testpkg".
> version _ platform i686-pc-linux-gnu arch i686 os linux-gnu system i686, linux-gnu status beta major 1 minor 8.0 year 2003 month 09 day 27 language R
-roger
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