[R] Non-Numeric Histograms

[justin rapp]

I have a dataset with a variable that is non-numeric.  I was wondering
if there is an easy way in R to create a bar graph that will tell me
how many of each level of this non-numeric variable are in the overall
dataset.

Specifically, if my variable is LETTER, and I have A, B,C, D, E, F and
I want to find out how many of each letter there are, what is the
easiest way to do this in R and use the information to make a plot?

jdr