[Rd] list.files() reorders files in R CMD INSALL

[Duncan Murdoch]

On 6/23/2005 4:18 PM, Vadim Ogranovich wrote:
> Hi,
>  
> The list.files() function seems to order its result vector differently
> when is run during R CMD INSTALL. Here is an example:
>  
> ~% mkdir ~/FOO
> ~% cd ~/FOO/
> ~/FOO% touch a A b B
> ~/FOO% ls
> a  A  b  B
> 
>  
> Put foo.R in the vor package. The foo.R just prints the files in ~/FOO:
> print(list.files("~/FOO"))
> 
> Now install the package:
> ~/FOO% R CMD INSTALL -l ~/R/library/ ~/src/vor/
> * Installing *source* package 'vor' ...
> ** libs
> make: `vor.so' is up to date.
> ** R
> ** preparing package for lazy loading
> [1] "A" "B" "a" "b"
>  
> ** help
>  >>> Building/Updating help pages for package 'vor'
>      Formats: text html latex example 
> * DONE (vor)
> 
>  
> Note that the files are listed as: [1] "A" "B" "a" "b"
>  
> Now start an R session
>> list.files("~/FOO")
> [1] "a" "A" "b" "B"
> 
> which differs in order from that in R CMD INSTALL.

Looks like the sorting is being done in the C locale in the first case, 
and in a different one in the second.  See ?locales for how to set the 
locale to what you want.

Duncan Murdoch