[R] 3 curves / 1 plot

[Julian Burgos]

You can use the points() and lines() functions to add points and lines 
to an existing plot.

Julian

Michel PETITJEAN wrote:
> I am a new user of R.
> Please does somebody knows how to plot 3 datasets
> (x1,a1),...,(xn,an), (x1,b1),...,(xn,bn), and (x1,c1),...,(xn,cn)
> on a single x,y plot, each of the three datasets being plotted with
> its own character pch() ?
> (three calls to plot() erase the two first datasets).
> Thank you very much.
> 
> Michel Petitjean,
> DSV/iBiTec-S/SB2SM (CNRS URA 2096), CEA Saclay, bat. 528,
> 91191 Gif-sur-Yvette Cedex, France.
> Phone: +331 6908 4006 / Fax: +331 6908 4007
> E-mail: michel.petitjean at cea.fr
> http://petitjeanmichel.free.fr/itoweb.petitjean.html
> 
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