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RE: st: quartiles


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: quartiles
Date   Tue, 11 May 2004 23:25:35 +0100

This issue is probably regarded as too much 
of a complication for the introductory books
and too mundane for the advanced books. 
The Stata manual does make clear Stata's 
own procedure. 

Nick 
n.j.cox@durham.ac.uk 

> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu]On Behalf Of peter harper
> Sent: 11 May 2004 23:18
> To: statalist@hsphsun2.harvard.edu
> Subject: RE: st: quartiles
> 
> 
> Nick
> That may explain why I, another author and yet another
> author have got different quartile figures.
> 
> 
>  --- Nick Cox <n.j.cox@durham.ac.uk> wrote: > There
> are lots of slightly different 
> > definitions of quartiles (more generally 
> > of quantiles) and packages
> > and sometimes commands within packages 
> > differ in what they use. This could 
> > easily account for some apparent 
> > discrepancies. 
> > 
> > See for example 
> > 
> > Rob J. Hyndman; Yanan Fan. 1996. 
> > Sample quantiles in statistical packages 
> > The American Statistician, 50(4) 361-365.
> > 
> > You may able to access this via http://www.jstor.org
> > 
> > Nick 
> > n.j.cox@durham.ac.uk 
> > 
> > peter harper
> > 
> > > I was merely replying to Clive's suggestion. 
> > > I have tried various things, I was not getting the
> > > same answer another author got. But I and a
> > another
> > > statalist user have agreed that I ask the author,
> > as
> > > he may have used other figures.
> > 
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