[R] qqplot

[Duncan Murdoch]

On 2/6/2006 9:59 AM, Vincent Negre wrote:
> Hello,
> I would like to use qqplot() to compare two
> experimental distributions. But I do not understand
> how qqplot() compute quantiles. In fact, quantile() do
> not return the same results.

Take a look at the source code.  qqplot replaces the longer vector with 
one calculated by linear interpolation (that's what approx does) between 
the values of the other.

Duncan Murdoch