Nick Cox has probably already written something for this (-:
However, the following is a quick and dirty program that'll do it. It
could be made into a more general wrapper that detects the display
format of the variable, and only displays as dates the stats for
date-formatted variables, etc etc.
program define sumdate
version 8
syntax varlist , [ Format(string) ]
if `"`format'"'=="" {
local format %d
}
di
di "{txt} Variable {c |} Obs Mean " ///
"Std. Dev. Min Max"
di "{hline 13}{c +}{hline 58}
foreach v of local varlist {
qui sum `v'
local mean : di `format' r(mean)
local sd : di %9.0g r(sd)
local min : di `format' r(min)
local max : di `format' r(max)
di "{txt}{ralign 12:`v'} " ///
"{c |}{res}{ralign 10:`r(N)'}" ///
"{ralign 12:`mean'}" ///
"{ralign 12:`sd'}" ///
"{ralign 12:`min'}{ralign 12:`max'}"
}
end
-----------------------------------------------------------
Nicholas Winter, Ph.D. P 202.939.5343
Policy Studies Associates F 202.939.5732
1718 Connecticut Avenue, NW [email protected]
Washington, DC 20009-1148 www.policystudies.com
-----------------------------------------------------------
> -----Original Message-----
> From: Devra Golbe [mailto:[email protected]]
> Sent: Wednesday, February 05, 2003 4:07 PM
> To: [email protected]
> Cc: Devra Golbe
> Subject: st: displaying summary statistics of date variables
>
>
> Is there a way to display summary statistics of (elapsed)
> date variables
> in date format? For example, summary of the following date variable
> produces output which is difficult to interpret: What, for
> example, is the
> latest date in variable "date"? 15337 is difficult to interpret.
>
> I have checked the manuals, the web site, and the list
> archives to no avail.
>
> Thanks,
> Devra
>
> summ date
>
> Variable | Obs Mean Std. Dev. Min Max
> -------------+-----------------------------------------------------
> date | 317462 12376.24 1809.816 9000 15337
>
>
>
> _____________________________________________
> Devra L. Golbe , Professor
> Department of Economics
> Hunter College
> 695 Park Ave., NY, NY 10021
> voice: 212-772-5408
> fax: 212-772-5398
> e-fax: 208-361-5964
>
> *
> * For searches and help try:
> * http://www.stata.com/support/faqs/res/findit.html
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
