On Jan 21, 2009, at 2:47 PM, Simon Urbanek wrote:
On Jan 21, 2009, at 13:15 , Ben Tupper wrote:
Hello,
I have a new Mac OSX 10.5 iMac running R 2.8.1. Using Finder, I
manually created a folder for R source code as /Users/Shared/code/R.
If I use R.app's "Misc>Change Working Directory..." menu dialog to
navigate to /Users/Shared/code/R and then use getwd() to print the
directory path, the components of the path are separated with
colons as shown: /Users/Shared/Shared:code/Shared:code:R
The R function file.path() does not produces these colon-ized paths.
Why should it? The colon is part of the name - the name of your
directory is "Shared:code" so the proper use of file.path is
> file.path("/Users","Shared","Shared:Code","Shared:code:R")
[1] "/Users/Shared/Shared:Code/Shared:code:R"
BTW: I suspect you are not quite aware of what you're doing in your
Finder - you're creating files/directories that have a slash in
their name which the Finder re-maps to colons. This has nothing to
do with R - it's a historic work-around in the Finder from times
when / was valid in file names in OS 9 and I suspect you didn't
really mean to create those files/directories that way...
Bingo! Thanks for the explanation, Simon. Your hunch that each
manually created directory was created with a "/" prefix is exactly
right. You are right that it was unintentional, and I won't even try
to explain how that happened.
Thanks again and cheers,
Ben
Cheers,
S
I have pasted below the commands I used as well as the output of
sessionInfo(). Additionally, I have provided the output of the ls
command from the Terminal which also appears to use the colon-ized
form.
I cannot replicate this issue in OSX 10.4.11 and R 2.8.1. I am
not sure how to proceed and suggestions are most welcome.
Thanks,
Ben
# file.path() creates the paths with the path separator "/"
> ROOTDIR <- file.path("/", "Users", "Shared")
> file.path(ROOTDIR, "code", "R")
[1] "//Users/Shared/code/R"
# but according to the dir() it is unreadable
> dir(file.path(ROOTDIR, "code", "R"))
character(0)
Warning message:
In dir(file.path(ROOTDIR, "code", "R")) :
list.files: '//Users/Shared/code/R' is not a readable directory
# use R.app's Misc>Change Working Directory...
# to change to "/Users/Shared/code/R"
> getwd()
[1] "/Users/Shared/Shared:code/Shared:code:R"
> sessionInfo()
R version 2.8.1 (2008-12-22)
i386-apple-darwin8.11.1
locale:
en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
>
From Terminal...
Henry:Shared Brian$ ls
SC Info Shared:code Shared:data
Shared:doc
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