[R] Plot with two seperate y axis

[David Barron]

Assuming the data are in a data frame called dt, this should work:

> plot(dt$Wk,dt$Para1,type="h")
> par(new=TRUE)
> plot(dt$Wk,dt$Para2,yaxt="n")
> axis(4,at=97:100)


On 24/11/06, Thorsten Muehge <MUEHGE at de.ibm.com> wrote:
>
> Hello,
> I would like to plot the following matrix:
> Wk=x achsis.
> Para 1 = left y-axis as a barplot
> para 2 right y-axis as a normal scatter plat.
>
> I could not find such a solution in any of my documentation.
>
> Can someone help me?
>
> Thanks a lot
> Thorsten
>
> Wk    Para 1      Para 2
> 31    2000  99.8
> 32    2005  99.0
> 33    2002  98.0
> 34    1090  98.5
> 35    2001  99.1
> 36    2010  97.0
> 37    2010  98.8
>
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-- 
=================================
David Barron
Said Business School
University of Oxford
Park End Street
Oxford OX1 1HP