Using par(new=TRUE) will often cause more problems than it helps.
A better approach would be to use the twoord.plot function from the
plotrix package or to use the updateusr function from the
TeachingDemos package along with the lines function to add the lines
afterwards.
On Wed, Aug 22, 2012 at 7:43 AM, vikrant <vikrant.shi...@tcs.com> wrote:
> Hi all,
>
> I am trying to plot a bar chart and trying to plot a line as a secondary
> axis as my scale is different for two y axis.
>
> I am plotting a clustered bar chart by using besides = True option in
> barplot function and my y coordinates are not plotted exactly at the center
> on each two bars. Please help me.
>
> I am pasting the code as follows.
>
> x = c("a","b","c","d")
> y= cbind(c(50,40,30,20),c(40,30,20,10))
> y2 = c(0.80,0.65,0.75,0.50)
> barplot(t(y),beside = TRUE)
> par(new=T)
> plot(y2,,,type="o",col="black",lwd=
> 3,lty=1,xaxt="n",yaxt="n",xlab="",ylab="")
> points(y2,pch=20)
>
> I also tried following code for plotting the line point exactly at the
> center of two bars:
>
> x = c("a","b","c","d")
> y= cbind(c(50,40,30,20),c(40,30,20,10))
> y2 = c(0.80,0.65,0.75,0.50)
> barplot(t(y),beside = TRUE)
> a = barplot(t(y),beside = TRUE)
> par(new=T)
> plot(colMeans(a),y2,type="l",col="black",lwd=
> 1,lty=1,xaxt="n",yaxt="n",xlab="",ylab="")
> points(colMeans(a),y2,pch=20)
>
> Please help me in plotting this graph
>
>
>
> --
> View this message in context:
> http://r.789695.n4.nabble.com/Barplot-with-Secondary-axis-tp4640980.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.
--
Gregory (Greg) L. Snow Ph.D.
538...@gmail.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.
