[R] R: pp plot

P Ehlers ehlers at math.ucalgary.ca
Tue Nov 22 13:48:05 CET 2005


Is qq.plot in package 'car' of use to you? I think that it
requires your distribution to be one of those available in R.

Peter

Clark Allan wrote:
> hi all
> 
> i would like to know if anyone has a reference on how one would place
> the "bands" on the pp plot.
> 
> i want to test whether or not a certain data set comes from a particular
> distribution (not normal).
> 
> i've already plotted F(X(j)) vs j/(n+1)	where F(x) is the cum dist
> function, X(j) is the j'th order statistic and n is the sample size. 
> 
> a goole search gave arb references and thought some one one the list
> should definitely know how to solve this problem.
> 
> thanking you in advance
> allan
> 
> 
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--
Peter Ehlers
University of Calgary




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