Hi everyone!

I have the following difficulties using ggplot2

# My Data
data<-as.data.frame(cbind(a=c(1,1,2,2,2,2,3,3,4), b=c(1,2,3,3,4,4,4,4,4)))

And I would like to plot the frequency-distributions of both variables in
one plot as lines. For both variables the values (1-4) should be on the
x-axys
and the frequency on the y-axis.

I have already found out, that this should work (somehow) using
stat_summary()

Can anyone help me?

library(ggplot2)
p<-ggplot(data=data, aes(a,b) )
p+stat_summary(??)

Thank you very much for help!
David

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