[R] ggplot2 - two or more axis

ONKELINX, Thierry Thierry.ONKELINX at inbo.be
Mon Nov 17 11:52:57 CET 2008

Dear David,

You could put the numbers on the graph with geom_text()



ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature
and Forest
Cel biometrie, methodologie en kwaliteitszorg / Section biometrics,
methodology and quality assurance
Gaverstraat 4
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tel. + 32 54/436 185
Thierry.Onkelinx op inbo.be 

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-----Oorspronkelijk bericht-----
Van: r-help-bounces op r-project.org [mailto:r-help-bounces op r-project.org]
Namens David Hajage
Verzonden: zaterdag 15 november 2008 14:03
Aan: hadley wickham
CC: R Help
Onderwerp: Re: [R] ggplot2 - two or more axis

Thank you very much for the answer.

I have seen very often the number of subject at risk on survival graph
my pdf file). It is very easy to plot the curve with geom_step(), but is
there a better way to show the number of subjects at risk at each time ?

Thank you for your advice.

2008/11/14 hadley wickham <h.wickham op gmail.com>

> Hi David,
> > I'm trying to learn how to make a plot with the amazing package
> >
> > I was wondering if it was possible to draw 2 (or more) x (or y) axis
> the
> > same graph. For example :
> >  - I want to show two informations at each x coordinate : a survival
> curve,
> > I want to show the time (0, 12 and 24 months) and the number of
> at
> > risk at each time.
> >  - I want to draw two curves that don't have the same unit
> Unfortunately, the capability is currently unavailable in ggplot2 and
> is unlikely to ever be available because I believe it is a
> fundamentally inaccurate means of presenting data.  However, in the
> next version it will be much easier to created faceted displays with
> varying scales, which should be a better solution for many of these
> types of problems.
> Regards,
> Hadley
> --
> http://had.co.nz/

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