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.
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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: [email protected]
_________________________________________________________
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