Hi all,
 
I'm smoothly transferring my lattice graphs to ggplot2 graphs, but I'm stuck
on representing a curve from a formula.
I'm looking for the equivalent of curve() in ggplot2, Hadley Wickham
mentions geom_curve, but as far as I've seen in the help it doesn't exist.
 
My need is to plot a regular scatter plot of experimental data (easy to do
actually) and then add the fitting model according to a specific formula
like
y = a*(b*x^n)/(1+b*x^p)
 
where a,b,n and p are known parameters.
 
I guess it's possible and easy to add this layer with ggplot, somehow I
didn't find the right function.
 
Any help would be warmly appreciated.

Regards/Cordialement

-------------
Benoit Boulinguiez
Ph.D student
Ecole de Chimie de Rennes (ENSCR) Bureau 1.20 
Equipe CIP UMR CNRS 6226 "Sciences Chimiques de Rennes"
Avenue du Général Leclerc 
CS 50837 
35708 Rennes CEDEX 7 
Tel 33 (0)2 23 23 80 83
Fax 33 (0)2 23 23 81 20
 <http://www.ensc-rennes.fr/> http://www.ensc-rennes.fr/ 

 

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