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Re: st: generate a date (plus 40 days from a start date)


From   Eric Booth <[email protected]>
To   [email protected]
Subject   Re: st: generate a date (plus 40 days from a start date)
Date   Tue, 13 Mar 2012 10:55:19 -0500

Using the same example as from our other discussion thread, the trick is to format your dates:

*****************!
clear
**data ex. shortened a bit:===>
inp str15 fulldate	firm_id	director_id	mark
"22/10/2002"	1	7	0
"07/04/2003"	1	7	0
"11/04/2003"	1	7	0
"01/10/2003"	1	7	0
"01/10/2003"	1	7	0
"20/10/2003"	1	7	0
"07/04/2004"	1	7	0
"08/04/2004"	1	7	0
"16/04/2004"	1	7	0
"25/10/2004"	1	7	1
"12/11/2004"	1	7	0
"07/04/2005"	1	7	1
"27/04/2005"	1	7	1
"25/08/2005"	1	7	0
"05/09/2005"	1	7	0
"12/09/2005"	1	7	0
"25/10/2005"	1	7	1
"25/04/2006"	1	7	1
"25/04/2006"	1	7	1
"05/09/2006"	1	7	0
"05/09/2006"	1	7	0
"28/09/2006"	1	7	0
"28/09/2006"	1	7	0
"28/09/2006"	1	7	0
"28/09/2006"	1	7	0
"28/09/2006"	1	7	0
"25/10/2006"	1	7	1
"27/04/2007"	1	7	1
"27/04/2007"	1	7	1
"06/09/2007"	1	7	1
"06/09/2007"	1	7	1
"06/09/2007"	1	7	1
"06/09/2007"	1	7	1
end
drop mark

**format dates
*see -help dates-
g date = date(fulldate, "DMY")
format date %td


g enddate = date +40
format enddate %td

*****************!

- Eric
__
Eric A. Booth
Public Policy Research Institute
Texas A&M University
[email protected]
Office: +979.845.6754











On Mar 13, 2012, at 9:40 AM, Agnieszka Trzeciakiewicz wrote:

> Hi,
> I am trying to write a formula, that will generate an end date variable
> which will be distance from a start date for 40 days.
> For instance start date is 1/09/2000 end date should be 10/10/2000
> (1/09/2000+40 days)
> Thanks,
> Agnieszka
> 
> *
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