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st: AW: Using dates


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: AW: Using dates
Date   Wed, 15 Apr 2009 16:12:06 +0200

<> 


Use this example:

*************
clear*
inp str19 date
20090102
20090203
20090405
end

compress

generate double mydate = date(date, "YMD")
format mydate %td

g year=year(mydate)
g month=month(mydate)
g day=day(mydate)

format  month %tmmon

list, noobs
*************



HTH
Martin


-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Linn Renée
Naper
Gesendet: Mittwoch, 15. April 2009 15:39
An: statalist@hsphsun2.harvard.edu
Betreff: st: Using dates 

Hi
I work with sdv-files where I have a variable displaying dates.

The date is reported as 20090102 etc (January 2nd 2009).
And the variable has storage type str19 and display format is %19s.

My question is how I should make Stata read this as a date, and moreover
being able to generate additional variables indicating week day, week
number, month and year from this variable.

Thanks
Linn

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