Hi Roslina
In order to get the X coordinates of your barplot, assign the barplot to a
variable:
x.coor <- barplot(something)
Now use the x.coor for your line plot.
Cheers,
Tal
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On Thu, Apr 1, 2010 at 1:44 AM, Roslina Zakaria <zrosl...@yahoo.com> wrote:
> Hi r-users,
>
> I have this data below and would like to plot a barplot overlap with a
> line.
> This is my data:
> > hist_50
> pdf_obs pdf_gen.50
> 1 0.000000 0.000000
> 2 0.083156 0.125366
> 3 0.132196 0.158230
> 4 0.126866 0.149432
> 5 0.120469 0.127897
> 6 0.121535 0.104096
> 7 0.103412 0.082171
> 8 0.082090 0.063539
> 9 0.065032 0.048408
> 10 0.050107 0.036470
> 11 0.036247 0.027236
> 12 0.031983 0.020198
> 13 0.017058 0.014893
> 14 0.009595 0.010928
> 15 0.007463 0.007986
> 16 0.006397 0.005816
> 17 0.003198 0.004222
> 18 0.003198 0.003057
> 19 0.000000 0.002208
>
> I tried
> sq <- seq(0,900,by=50)
> sq.50 <- as.character(sq)
> barplot(t(hist_50[,1]), col= "blue", beside=TRUE, ylim=c(0,0.2),
> main="Observed and generated gamma sum",
> xlab="Rainfall totals(mm)",cex.axis=0.8,ylab="Probability")
> legend("topright", c("observed","generated"), fill= c("blue","yellow"))
> rownames(hist_50) <- sq.50
> lines(spline(hist_50[,2]),lty=1)
>
> The problem is the x-axis label is invisible, I want 0, 50, 100,....
> Another thing is I want the line to plot on top of the barplot. It seems
> that it is shifted to the left.
>
> Thank you.
>
>
>
>
> [[alternative HTML version deleted]]
>
>
> ______________________________________________
> R-help@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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