install RPM file on Redhat

Dear R People:

I downloaded the RPM for Red Hat Linux.

How do I install this, please?  When I looked 
at the R Intallation manual, it seemed to be
referring to installing from source.

Thanks in advance!

Sincerely,
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: hodgess at gator.uhd.edu