R help - Aug 2011 - Standard error bars on bar plots

Hi,
I know there have been numerous posts about this but I am unable to find one, or
at least carry out one, that gives me the plot I want.
I have managed to add the error bars to the plot, but they end up not aligned
with the centre of the bars themselves.

Here is my script: 


means<-c(0.135283333,0.082829167,0.2757625)
SE<-c(0.036364714,0.039582896,0.06867608)
halfSE<-c(0.018182357,0.019791448,0.03433804)

barx<-barplot(means,main="Proportion of time spent in AMU
sector",xlab="Treatments",ylab="Proportion of
time",names.arg=c("Solitary","Size-matched
conspecific","Sub-adult
conspecific"),cex.names=0.85,axis.lty=1,ylim=c(0,0.4))
library(gplots)
plotCI(x=means,uiw=halfSE,lty=1,gap=0,add=TRUE)

Thanks for any suggestions or help you may have,
CJ

On 12.08.2011 18:43, Christopher Crooks wrote:
> Hi,
> I know there have been numerous posts about this but I am unable to find
one, or at least carry out one, that gives me the plot I want.
> I have managed to add the error bars to the plot, but they end up not
aligned with the centre of the bars themselves.
>
> Here is my script:
>
>
> means<-c(0.135283333,0.082829167,0.2757625)
> SE<-c(0.036364714,0.039582896,0.06867608)
> halfSE<-c(0.018182357,0.019791448,0.03433804)
>
> barx<-barplot(means,main="Proportion of time spent in AMU
sector",xlab="Treatments",ylab="Proportion of
time",names.arg=c("Solitary","Size-matched
conspecific","Sub-adult
conspecific"),cex.names=0.85,axis.lty=1,ylim=c(0,0.4))
> library(gplots)
> plotCI(x=means,uiw=halfSE,lty=1,gap=0,add=TRUE)

plotCI(x=barx, y=means,uiw=halfSE,lty=1,gap=0,add=TRUE)

Uwe Ligges
> Thanks for any suggestions or help you may have,
> CJ
> ______________________________________________
> 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.

Or ?barplot2

barplot2(means,main="Proportion of time spent in AMU
sector",xlab="Treatments",ylab="Proportion of
time",names.arg=c("Solitary","Size-matched
conspecific","Sub-adult
conspecific"),cex.names=0.85,axis.lty=1,ylim=c(0,0.4),
         plot.ci=TRUE,ci.l=means,ci.u=means+halfSE)

Mikhail

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at
r-project.org]
On
> Behalf Of Uwe Ligges
> Sent: Friday, August 12, 2011 12:04 PM
> To: Christopher Crooks
> Cc: r-help at r-project.org
> Subject: Re: [R] Standard error bars on bar plots
> 
> 
> 
> On 12.08.2011 18:43, Christopher Crooks wrote:
> > Hi,
> > I know there have been numerous posts about this but I am unable to
find
> one, or at least carry out one, that gives me the plot I want.
> > I have managed to add the error bars to the plot, but they end up not
> aligned with the centre of the bars themselves.
> >
> > Here is my script:
> >
> >
> > means<-c(0.135283333,0.082829167,0.2757625)
> > SE<-c(0.036364714,0.039582896,0.06867608)
> > halfSE<-c(0.018182357,0.019791448,0.03433804)
> >
> > barx<-barplot(means,main="Proportion of time spent in AMU
> sector",xlab="Treatments",ylab="Proportion of
> time",names.arg=c("Solitary","Size-matched
conspecific","Sub-adult
> conspecific"),cex.names=0.85,axis.lty=1,ylim=c(0,0.4))
> > library(gplots)
> > plotCI(x=means,uiw=halfSE,lty=1,gap=0,add=TRUE)
> 
> 
> plotCI(x=barx, y=means,uiw=halfSE,lty=1,gap=0,add=TRUE)
> 
> Uwe Ligges
> 
> > Thanks for any suggestions or help you may have,
> > CJ
> > ______________________________________________
> > 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.
> 
> ______________________________________________
> 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.