[R] Category plots

[Ragnar Beer]

Howdy!

Is there already a function in R or in a package that I didn't notice 
that plots means +/- standard errors for categories like cellplots in 
StatView or category-plots in Systat do (see my ASCII art below)?

Ragnar


|
|               -
|               |
|    -       ...o
|    |   ....   |
|    o...       -
|    |
|    -                       o = group 1
|                            x = group 2
|    -
|    |          -
|    x.....     |
|    |     .....x
|    -          |
|               -
|
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