sysuse auto, clear
_pctile mpg, p(50)
ret li
di in red r(r1)
to get the median elegantly into r(r1). I hope you know how to take it from
there... BTW, -if- and -in- are allowed with -_pctile-...
HTH
Martin
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Fabian Brenner
Sent: Monday, September 29, 2008 6:03 PM
To: [email protected]
Subject: st: median for last 3 years within groups
Dear all:
I have 10 different "groups" of people and I want to get the median "age"
(across observations) for the last 3 years within each group for each year.
I have the following idea but unfortunately I don't have any idea how to get
the median.
sort year group
genenerate threeyearmedian=.
generate median=.
quietly forvalues k = 1/10 {
quietly forvalues y = 1982/2006 {
local y1 = `y' - 3
local y2 = `y' - 1
generate median = ??? median age ??? if inrange(year, `y1', `y2') &
group==`k'
replace threeyearmedian median if year == `y' & group ==`k'
}
}
Hope someone can help me.
Fabian
--
Psssst! Schon vom neuen GMX MultiMessenger geh�rt? Der kann`s mit allen:
http://www.gmx.net/de/go/multimessenger
*
* 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/
