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.
--
View this message in context:
http://www.nabble.com/ordering-a-factor-in-boxplot-output-tp16989073p16989073.html
Sent from the R help mailing list archive at Nabble.com.
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.
> --
> View this message in context:
> http://www.nabble.com/ordering-a-factor-in-boxplot-output-tp16
> 989073p16989073.html
> Sent from the R help mailing list archive at Nabble.com.
>
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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The factor order defaults to alphabetical, and boxplot follows that.
Re-ordering the factor to the order of interest is probably the best way
of handling it.
However, if you don;t want to do that, you could perhaps also use the
at= parameter in boxplot. For example
x<-rnorm(50)
g<-factor(rep(c("B","A"),each=25))
boxplot(x~g)
boxplot(x~g, at=c(2,1))
Steve E
>>> Tubin <sredmonson at yahoo.com> 30/04/2008 19:40:08
>>>
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.
--
View this message in context:
http://www.nabble.com/ordering-a-factor-in-boxplot-output-tp16989073p16989073.html
Sent from the R help mailing list archive at Nabble.com.
______________________________________________
R-help at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
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