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Re: st: RE: calculating number of bimesters


From   "Rodrigo Briceño" <rjbriceno@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: calculating number of bimesters
Date   Wed, 17 Dec 2008 11:09:29 -0600

Nick, after trying your solution I discovered that instead of the
values 1=july-august 2002, 2=sep-oct 2002, 3=mar-apr 2004, 4=jul-aug
2004, 5=sep-oct 2004, and 6=nov-dic 2004, I have the values 16, 17,
20, 21, 22, 23. In that case I changed your commands in this way:

gen year0 = cond(phase < 20, 2002, 2004)

The doubt here is which values corresponds to the second and third
lines of command:

gen bimester0 = cond(phase < 3, phase + 3, cond(phase == 3, 2, phase))
(do I need to change the 3 for 20?, not sure about it

gen mytime = 6 * (year - year0) + (bimester - bimester0) + 1

any help is appreciated.


> Nick
> n.j.cox@durham.ac.uk
>
> By the way, Rodrigo: You started a thread on 4 December
>
> <http://www.hsph.harvard.edu/cgi-bin/lwgate/STATALIST/archives/statalist.0812/date/article-221.html>
>
> -- and David Elliott and I posted various replies, raising subsidiary questions, but I never saw any reply from you.
>
> Rodrigo Briceño
>
> I need to calculate the amount of bimesters a
> household stay in a program. For that purpose I have three different
> variables:
> 1. Phase of incorporation (phase): it has 6 numeric values where
> 1=july-august 2002, 2=sep-oct 2002, 3=mar-apr 2004, 4=jul-aug 2004,
> 5=sep-oct 2004, and 6=nov-dic 2004
> 2. Two variables that contain the information about the time the
> household dropped the program:
> 2. 1 Year: from 2002 to 2008
> 2. 2 bimester: from 1 to 6
>
> In what way can I calculate the amount of bimesters (or months) that a
> household stayed in the program? Example above (time is the variable
> which values I need):
>
> HH  phase  year    bimester  time
> 1      3         2007       2         19 (or 38 months)
> 2      1         2004       1          10 (or 20 months)
>
>
> *
> *   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/
>



-- 
Rodrigo Briceño
Economist
+506  22-91-12-00 ext. 113   Office
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rjbriceno@gmail.com
rjavierb@racsa.co.cr

MSN: jbric98@hotmail.com
SKYPE: rbriceno1087

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



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