Re: [R] ordering a factor in boxplot output

From: Tubin <>
Date: Thu, 01 May 2008 07:54:45 -0700 (PDT)

Thank you, that gives me exactly what I need.

One option is to set the order in newfile:

newfile$ApptCategory <- factor(newfile$ApptCategory, levels=c('New','Established'))

Of course, this will then affect the order for other things associated with ApptCategory, but that is probably what you want.

HTH ....... Peter Alspach

> -----Original Message-----
> From:
> [] On Behalf Of Tubin
> Sent: Thursday, 1 May 2008 6:40 a.m.
> To:
> Subject: [R] ordering a factor in boxplot output
> I'm sure I'm missing something obvious in the documentation...
> I'm generating a boxplot
> boxplot(CleanValue~ApptCategory*ReportingCode,data=newfile)
> where ApptCategory is a factor with possible values
> ("New","Established")
> Problem is, the output orders those factors alphabetically,
> and I'd really rather see New come first. I'm apparently
> confused by the "reorder" function because somehow my
> attempts to apply it have resulted in reversing the labelling
> (so now the established boxes are labelled as new).
> What am I missing? Thanks.
> --

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