Full_Name: Lars Hansen
Version: 2.8.0
OS: Linux
Submission from: (NULL) (70.90.201.133)
Hi,
Calling installed.packages() on a directory with only one package causes an
error if the priority argument is set to "NA":
> installed.packages(lib.loc = "/home/lhansen/R/libs", priority = "NA")
Error in mat[, "Package"] : incorrect number of dimensions
This seems like a classic dropping from matrix to vector bug. Maybe the code
should be mat[, "Package", drop=FALSE].
It works fine with other arguments:
> installed.packages(lib.loc = "/home/lhansen/R/libs", priority = NULL)
Package LibPath Version Priority Bundle Contains Depends
test "test" "/home/lhansen/R/libs" "1.0-0" NA NA NA NA
Imports Suggests OS_type Built
test NA NA NA "2.8.0"
and:
> installed.packages(lib.loc = "/home/lhansen/R/libs", priority = "high")
Package LibPath Version Priority Bundle Contains Depends Imports Suggests
OS_type Built
The documentation clearly states that "NA" is a valid argument value. It says:
To select all packages without an assigned priority use 'priority = "NA"'
> sessionInfo()
R version 2.8.0 (2008-10-20)
x86_64-pc-linux-gnu
locale:
LC_CTYPE=en_US.UTF-8;LC_NUMERIC=C;LC_TIME=en_US.UTF-8;LC_COLLATE=en_US.UTF-8;LC_MONETARY=C;LC_MESSAGES=en_US.UTF-8;LC_PAPER=en_US.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US.UTF-8;LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] tools_2.8.0
I ran R with --vanilla.
Thanks,
Lars
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