Hello R-helpers, I would like to produce a boxplot for dates, using lattice. Here is a dummy example : dates<-as.Date(32768:32895,origin="1900-01-01") plouf<-data.frame(days=dates,group=factor(rep(1:2,times=128/2))) bwplot(group~days,data=plouf) # doesn't work, whereas : bwplot(group~as.numeric(days),data=plouf) # does, but is obviously not good looking when it comes to axis legends... Is there a way to pull off a boxplot with dates ? In advance thank you. David Gouache
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