[R] Doing box plots for part of the data??

[Frede Aakmann Tøgersen]

Or using the original data and the subset argument of boxplot:

boxplot(Barium~Well.ID,data=mydata, main="Barium", ylab="mg/L", subset = Well.ID %in% c("MW-1", "MW-2"))

Yours sincerely / Med venlig hilsen


Frede Aakmann Tøgersen
Specialist, M.Sc., Ph.D.
Plant Performance & Modeling

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> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
> On Behalf Of Jim Lemon
> Sent: 4. april 2014 05:55
> To: David Doyle
> Cc: r-help at r-project.org
> Subject: Re: [R] Doing box plots for part of the data??
> 
> On 04/04/2014 02:20 PM, David Doyle wrote:
> > HI folks
> >
> > I'm wanting to do box plots of just 2 of my wells.
> >
> > I can do it for all of them by using
> >
> > boxplot(Barium~Well.ID,data=mydata, main="Barium", ylab="mg/L")
> >
> > to do for all 4 wells
> > Anyone have a sugestion on how to do it for only 2 wells like MW-1 and
> MW-2?
> >
> > The data can be found?
> > http://www.doylesdartden.com/TEMP/mydata.csv
> >
> 
> Hi David,
> Try this:
> 
> dddf<-read.csv("mydata.csv")
> dddf12<-dddf[dddf$Well.ID=="MW-1" | dddf$Well.ID=="MW-2",]
> dddf12$Well.ID<-factor(dddf12$Well.ID,levels=c("MW-1","MW-2"))
> boxplot(Barium~Well.ID,dddf12)
> 
> Jim
> 
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