On 26/04/11 05:52, Wendy Han wrote:
Dear all,
I want to let R automatically download available files from a website in
certain folders. Since the files I need, if exist, are in a certain
directory, I used download.file() function with a predesigned directory.
However, some of the folders do not have the file I want. When this occurs,
my program returns error and terminates. So I wonder if there is any way
that I can check if a directory exists before downloading that file. I
appreciate your help!
Not quite sure I understand your question, but I think that the
file.info() function will provide what you need. Check out ?file.info.
See also ?files and ?file.access.
cheers,
Rolf Turner
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
