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!



Thanks!

Wendy

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