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

Jeff Gentry jgentry at jimmy.harvard.edu
Thu Feb 12 06:18:28 CET 2004

> 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?


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