Changing bar width when using stat_summary with ggplot

This is the subject of a known issues 444 and 235

The current solution is to pass width within aes -- this goes against the principles of ggplot (mapping vs setting), but at least it works....

Note that you can use linerange if you want the error bars without erro bars!

ggplot(data, aes(group, y)) + 
 stat_summary(fun.y="mean", geom="bar", aes(width=0.5)) +
  stat_summary(fun.data="mean_cl_normal", geom="linerange",  size=2)

This issue has been resolved. width now also works with stat_summary and geom="errorbar".