[R] Quantitative analysis of non-standard scatter plots.

[Ben Bolker]

Firas Swidan <frsswdn <at> gmail.com> writes:

> 
> Hi,
> 
> I am having difficulties in finding ways to analyse scatter plots and
> quantitatively differentiate between them.  

  Try quantile regression, implemented in Roger Koenker's quantreg
package.  There's a very thorough vignette (library(quantreg); vignette("rq")).

  Ben Bolker