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

From   Svend Juul <SJ@SOCI.AU.DK>
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 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 

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