Dear R Users,
I'm attempting to create a split beanplot in ggplot2 and have figured most of
it out except how to adjust the bandwidth for the density statistic. I read
online that geom_violin will not plot 2 separate sets of data and that
geom_ribbon should be used to create a split beanplot. So, I was able to
create this as a quick example that does a split beanplot of mpg for 6-cylinder
vehicle vs 8 cylinder vehicles:
p <- ggplot(mtcars)
p + geom_ribbon(data=subset(mtcars,mtcars$cyl==6),
aes(x=mpg,ymax=..density..,ymin=0),stat="density") +
geom_ribbon(data=subset(mtcars,mtcars$cyl==8),
aes(x=mpg,ymax=0,ymin=-..density..),stat="density")
What I can't figure out is how to adjust the bandwidth (e.g. as with 'adjust'
in geom_density) for the density statistic in the ribbon plot to make the
density plots either more or less smooth. Or, is there a better way to go
about this than what I've currently tried?
Any advice you might have on this would be greatly appreciated! Thank you for
your help!
cheers,
Andy
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