[R] qqplot
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. Thank you for your help. Vincent. __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] qqplot
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 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] qqplot
[Vincent Negre] [...] I do not understand how qqplot() compute quantiles. Just type ``qqplot`` (without the parentheses) at the R prompt, to see the source code. ``qqplot`` does not especially compute quantiles, which are rather obtained directly through sorting its arguments. -- François Pinard http://pinard.progiciels-bpi.ca __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
