This question follows from this other one. I was unable to implement answers there.
Define:
df2 <- data.frame(variable=rep(c("vnu.shr","vph.shr"),each=10),
value=seq(1:20))
Plot:
require(ggplot2)
qplot(variable,value, data=df2,geom="boxplot")+
geom_jitter(position=position_jitter(w=0.1,h=0.1))
I would like to have the boxplots in the reverse order (e.g. one in right on left and so on).
I have tried various ways of reordering the factors using levels
, ordered
, relevel
, rev
and so on, but I simply cannot seem to get the syntax right.
Have you tried this:
df2$variable <- factor(df2$variable,
levels = c('vph.shr','vnu.shr'),ordered = TRUE)
I just picked an ordering there, since my system is configured slightly differently than yours I suspect, so my 'default ordering' may differ. But you can just switch the position of levels when specifying them.
A few other options, depend on your tastes:
For just reversing the current ordering:
factor(df2$variable,levels = rev(levels(df2$variable)),ordered = TRUE)
or you can use subsetting to specify a specific ordering if you don't want to type out each level by hand:
factor(df2$variable,levels = levels(df2$variable)[1:2],ordered = TRUE)