[R] Non-Numeric Histograms

Uwe Ligges ligges at statistik.uni-dortmund.de
Sat Jul 8 16:53:10 CEST 2006

justin rapp wrote:
> 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?

  barplot(table(c("A", "A", "B")))

Uwe Ligges

> jdr
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