On 11/4/2009 11:05 AM, michael.m.spie...@gmail.com wrote:
Full_Name: Michael Spiegel
Version: 2.10
OS: Windows Vista
Submission from: (NULL) (76.104.24.156)
The following error is produced when attempting to call install.packages. Here
is the results of the traceback:
source('http://openmx.psyc.virginia.edu/getOpenMx.R')
Error in f(res) : invalid subscript type 'list'
traceback()
7: f(res)
6: available.packages(contriburl = contriburl, method = method)
5: .install.winbinary(pkgs = pkgs, lib = lib, contriburl = contriburl,
method = method, available = available, destdir = destdir,
dependencies = dependencies, ...)
4: install.packages(pkgs = c("OpenMx"), repos = repos)
3: eval.with.vis(expr, envir, enclos)
2: eval.with.vis(ei, envir)
1: source("http://openmx.psyc.virginia.edu/getOpenMx.R")
I've tracked the error down to somewhere in available.packages defined in
src\library\utils\R\packages.R. I am guessing that the error in version 2.10
has something to do with the change: "available.packages() gains a 'filters'
argument for specifying the filtering operations performed on the packages found
in the repositories."
I've found the error, and will fix and commit to R-devel and R-patched.
For future reference: the problem was that it assigned the result of
sapply() to a subset of a vector. Normally sapply() simplifies its
result to a vector, but in this case the result was empty, so sapply()
returned an empty list; assigning a list to a vector coerced the vector
to a list, and then the "invalid subscript type 'list'" came soon after.
Duncan Murdoch
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