[R] How to detect whether a file exists or not?

Roger D. Peng rpeng at jhsph.edu
Thu Feb 12 04:42:20 CET 2004

Even better, file.exists().


Dirk Eddelbuettel wrote:
> On Wed, Feb 11, 2004 at 07:22:00PM -0800, Francisco J Molina wrote:
>>I would like my program to load variables x,y,x from a file 'myFile.r' but
>>if this file does not exist, I want my program to create/initialize x,y,z.
>>Does anyone know how to do this?
> ?file.info			# as help.search("file") would have revealed
> Hth, Dirk

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