R help - Mar 2010 - How To Specify An Improper Uniform Prior (Bayesian Analysis)

Hi,

In Winbugs, one can assign a distribution called "dflat()", which
corresponds to an improper uniform prior on the whole real line. What
would be the equivalent in R? I ask because I'm trying to run Winbugs
through R, and the model I've constructed in Winbugs includes a
"dflat()" distribution. For all of the normal priors in Winbugs,
I've
been using "rnorm" in R.

Thanks,

Ryan