From: Gabor Grothendieck <[EMAIL PROTECTED]> > > [sorry. I had some email problems on my last one. here it > is again.] > > From: Gabor Grothendieck <[EMAIL PROTECTED]> > > > > > From: <[EMAIL PROTECTED]> > > > > > > On 24-Dec-04 Gabor Grothendieck wrote: > > > > > > > > From: Paul JH Drake <[EMAIL PROTECTED]> > > > >> > > > >> When I plot data as a boxplot, the boxes appear on the plot in > > > >> alphabetical order (of group) rather than the order in which they > > > >> appear > > > >> in the data. So far, the only thing I can do to fix this is to prefix > > > >> the group labels with a,b,c...etc to trick R into plotting them in the > > > >> right order. > > > >> > > > >> Can sorting be turned off? > > > >> How should I address this sensibly? > > > > > > > > Actually they are shown in order of the levels of the factor. > > > > e.g. to show them in reverse order: > > > > > > > > attach(InsectSprays) > > > > spray <- factor( as.character(spray), level = rev(levels(spray)) ) > > > > boxplot(count ~ spray) > > > > > > Applying boxplot to data constructed as follows: > > > > > > X<-list(C=rnorm(10),B=rnorm(20),A=rnorm(30)) > > > boxplot(X) > > > > > > gives the plots in the order "C", "B", "A", so here they indeed > > > come out in the order of the data. > > > > > > But suppose I had wanted them in the order "B", "A", "C", say. > > > How would Gabor's suggestion (or similar) be applied to this case? > > > > boxplot(X[c("B","C","A")]) > > > > It occurred to me that maybe your question was not how to reorder > them if they are in list form but how to convert the list form > to the formula form. If that was it then: > > Xu <- unlist(X) > g <- factor(rep(names(X), sapply(X, length))) # add levels= arg to reorder > boxplot(Xu ~ g)
or even shorter: boxplot(values ~ ind, stack(X)) ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html