Thanks, I'll study that.
In the -foreach- call below, is there a way to broadly specify all
variables beginning with t_, rather than just that single variable
t_date?
On Oct 9, 2009, at 9:05 AM, Martin Weiss wrote:
>
> <>
>
> You may also find -help time_series_functions- useful...
>
>
> *************
> clear
> set obs 5
> gen id = _n
> gen date="11012009"
> replace date="11022009" in 3
> replace date="11032009" in 4
> list date
> generate t_date = date(date, "MDY")
> generate t_anotherdate=t_date+2
> format t_* %td
>
> qui ds t_*
>
> foreach var of varlist `r(varlist)'{
> gen byte seek`var' = `var' > td(1nov2009) & t_date < td(3nov2009)
> }
>
> list, noobs
>
> *************
>
>
>
> HTH
> Martin
>
>
> -----Ursprüngliche Nachricht-----
> Von: [email protected]
> [mailto:[email protected]] Im Auftrag von Michael
> McCulloch
> Gesendet: Freitag, 9. Oktober 2009 18:00
> An: Statalist Statalist
> Betreff: st: finding date occurrences within a specified range,
> searching in
> multiple variables
>
> I'm looking for events that all occurred within a specified date
> range, searching in multiple date fields. I've created the following
> example to show that I want to find all records where t_date is
> between 1nov2009 and 3nov2009.
>
> This works fine, but is there a way to create a loop that would do
> this search within multiple date fields, all of which have field name
> beginning with "t_"?
>
> clear
> set obs 5
> gen id = _n
> gen date="11012009"
> replace date="11022009" in 3
> replace date="11032009" in 4
> list date
> generate t_date = date(date, "MDY")
> format t_date %td
> gen seek = cond((t_date > td(1nov2009) & t_date < td(3nov2009)), 1, 0)
> sort seek
> list id t_date seek if seek==1
> list id t_date if (t_date > d(1nov2009) & t_date < d(3nov2009))
>
>
>
>
> Michael McCulloch, LAc MPH PhD
> Pine Street Foundation
> 124 Pine Street
> San Anselmo, CA 94960-2674
> tel: 415-407-1357
> fax: 206-338-2391
> [email protected]
>
>
>
>
>
> *
> * 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/
>
>
> *
> * 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/
Michael McCulloch, LAc MPH PhD
Pine Street Foundation
124 Pine Street
San Anselmo, CA 94960-2674
tel: 415-407-1357
fax: 206-338-2391
[email protected]
*
* 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/
