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Re: st: dumb cross-tab question


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: dumb cross-tab question
Date   Thu, 29 Nov 2007 12:40:47 +0000 (GMT)

--- "E. Paul Wileyto" <epw@mail.med.upenn.edu> wrote:
> Is there a quick way to get Stata to format a two-way table showing 
> means, SEs, and CIs for a third variable?
> 
> tabulate summarize doesn't seem to do SEs and CIs
> 
> tabstat gets angry if I try to give it two by variables.

Nick gave some code, and I too was busy along his line, with a slightly
different twist: 

*---------------- begin example -------------------------
sysuse auto, clear
preserve
collapse (mean) mean=mpg (sd) sd=mpg (count) N=mpg ///
         if !missing(rep78,foreign), by(foreign rep78) 
gen se = sd/sqrt(N)
gen df = N-1
gen lb = mean - invttail(df,0.025)*se
gen ub = mean + invttail(df,0.025)*se
drop sd N df
reshape wide mean se lb ub, i(rep78) j(foreign)
mkmat mean0-ub1, matrix(table) rownames(rep78)
matrix colnames table = domestic:mean domestic:se domestic:lb  ///
                        domestic:ub foreign:mean foreign:se    ///
                        foreign:lb foreign:ub
matlist table, format(%9.2f) rowtitle("repair record") tw(13)
restore
*------------------- end example -----------------------------
(For more on how to use examples I sent to the Statalist, see
http://home.fsw.vu.nl/m.buis/stata/exampleFAQ.html )

-- Maarten

-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands

visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434

+31 20 5986715

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


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