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Re: st: Combining date and time into one variable.


From   Svend Juul <SJ@SOCI.AU.DK>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Combining date and time into one variable.
Date   Fri, 28 Mar 2008 16:05:55 +0100

ippab wrote:
 
I have two variables, one indicating date and another indicating time
of the day.  For example, date = 03/26/2008 and time = 17:31:30.  I am
wondering how I can combine these two variables into one variable so
that I can use the new "Datetime" variable for tis.
 
My understanding is that 'tis' command (for panel data or time series
analysis) only accepts one variable.  Since I have several
observations for a panel on the same day, I need to make sure both
date and time are used as the time variable.
 
=============================================================
 
You must tell us more:
 
1. What version of Stata do you use? Concerning date and time, 
Stata 10 is different from Stata 9.
 
2. The type of the variables -date- and -time-. Are they numeric
variables displayed in date and time formats, or are they strings?
 
Svend
 
________________________________________________________ 
 
Svend Juul
Institut for Folkesundhed, Afdeling for Epidemiologi
(Institute of Public Health, Department of Epidemiology)
Vennelyst Boulevard 6 
DK-8000 Aarhus C,  Denmark 
Phone, work:   +45 8942 6090 
Phone, home:   +45 8693 7796 
Fax:           +45 8613 1580 
E-mail:        sj@soci.au.dk 
_________________________________________________________ 


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