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st: Re: RE: Geometric Standard Distribution


From   Weiwei Du <wdu@interchange.ubc.ca>
To   statalist@hsphsun2.harvard.edu
Subject   st: Re: RE: Geometric Standard Distribution
Date   Tue, 10 Aug 2004 15:03:24 -0700

Hi Nick:

Thank you very much for the elegant answers. They are exactly what I need.

Cheers,

Weiwei
----- Original Message ----- 
From: "Nick Cox" <n.j.cox@durham.ac.uk>
To: <statalist@hsphsun2.harvard.edu>
Sent: Tuesday, August 10, 2004 2:21 PM
Subject: st: RE: Geometric Standard Distribution


> In addition, various programs on SSC 
> offer direct support for graphical 
> assessment of a lognormal fit to 
> a single distribution. 
> 
> -qlognorm- (Stata 7) (there is a
> Stata 8 version, but it's not been 
> made public) (package also 
> includes -plognorm- (similar comment)) 
> 
> -dpplot- (Stata 8) 
> 
> Nick 
> n.j.cox@durham.ac.uk 
> 
>  
> > Assuming this is exp(sd(log())), I guess most 
> > people would take the logs, etc. Writing your 
> > own is not too difficult; below is a sketch.
> > 
> > ------------------------------ begin geomeansd 
> > program geomeansd
> > end 
> > ------------------------ end geomeansd.ado 
> > 
> > 
> > Nick 
> > n.j.cox@durham.ac.uk 
> > 
> > > I have a set of data that follows log-normal distribution.  
> > > In STATA the
> > > command "means" only gives geometric mean and confidence 
> > > intervals. Is there
> > > a way to calculate geometric standard deviation in STATA?
> > 
> 
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> 

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