Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, statalist.org is already up and running.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: extract hours, minutes and seconds from date


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: extract hours, minutes and seconds from date
Date   Fri, 21 May 2010 09:18:39 +0000 (GMT)

--- On Fri, 21/5/10, raoul reulen wrote:
> I have a date variable that looks like this:
> 
> 30dec1999 08:50:00
> 
> and I want to extract the hour, minutes, and seconds part
> of it

I thought I had an answer, but in my case the minutes and
seconds part seems to be slightly off (49 minutes instead of
50, and 38 seconds instead of 0):

*---------------- begin example ------------------
clear
drop _all
set obs 1
gen double time = clock("30dec1999 08:50:00", "DMYhms")
format time %tc
list
gen hour = hhC(time)
gen minute = mmC(time)
gen sec = ssC(time)
list
*----------------- end example --------------------

Maybe somebody else can explain where these differences
come from.

-- Maarten

--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany

http://www.maartenbuis.nl
--------------------------


      

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index