[R] Odp: Find the function of a line

[Petr PIKAL]

Hi

r-help-bounces at r-project.org napsal dne 29.06.2011 11:38:17:

> Ida Dolciotti <ida.dolciotti at ufz.de> 

> Hello everybody,
> 
> I have drawn a line in a x y plot  that links the minimum and maximum 
> points in the plot
> 
> plot(xx,yy)
> 
> a=max(yy)
> b=min(yy)
> 
> lines(c(xx[yy==a],xx[yy==b]),c(a,b))
> 
> Now I would like to know if it is possible to extrapolate the 
> characteristic of the line (intercept and slope).
> 
> Is it there and appropriate function for this?

Maybe ?abline

Regards
Petr


> 
> Thanks for your help!
> 
> Ida D.
> 
> -- 
> Ida Dolciotti, M.Sc.
> Phd student, Dept. System Ecotoxicology
> Helmholtz Centre for Environmental Research - UFZ
> Permoserstr. 15
> 04318 Leipzig
> 
> phone:   +49 - 341/235-1498
> fax:    +49 - 341/235-1785
> 
> email: ida.dolciotti at ufz.de
> website: http://www.ufz.de/index.php?en=17738
> 
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