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st: RE: ci, return lists, and statsby commands


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: ci, return lists, and statsby commands
Date   Mon, 29 Sep 2003 19:23:34 +0100

Not clear what the problem is here. 

This worked for me: 

. sysuse auto 
. statsby "ci mpg" N=r(N) mean=r(mean) ub=r(ub) lb=r(lb) , by(rep78)

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

> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu]On Behalf Of 
> Wallace, John
> Sent: 29 September 2003 18:58
> To: 'statalist@hsphsun2.harvard.edu'
> Subject: st: ci, return lists, and statsby commands
> 
> 
> Dear Statalisters
> 
> I'm trying to summarize a dataset using the statsby command 
> (with a saving
> option to make a collapsed dataset).  Two of the measures 
> I'd like to make
> are upper and lower limits for the mean using 95% 
> confidence intervals.  I
> thought I'd be able to do this by peeking at the 
> appropriate values using
> the -return list- command.  When I do so, I get nothing, no 
> errors, no list.
> Can anyone provide any guidance on this?  -Collapse- 
> doesn't appear to have
> confidence intervals implemented either.
> 
> John Wallace
> Research Associate
> Affymetrix, Inc
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