[R] ordering a factor in boxplot output

[Tubin]

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: r-help-bounces at r-project.org 
> [mailto:r-help-bounces at r-project.org] On Behalf Of Tubin
> Sent: Thursday, 1 May 2008 6:40 a.m.
> To: r-help at r-project.org
> 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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