FUKUGAWA Nobuya wrote:
> Suppose we want to limit observations where one variable
> records a larger value
> than its top quartile, we can write as follows.
>
> sum d,detail
> reg y a b c if d>r(p75)
>
> However, this program allows only fixed thresholds such as 1,
> 10, and 75 percent.
> How can I use other thresholds such as r(p33) in the program?
. _pctile d, percent(33)
. reg y a b c if d>r(r1)
or maybe
. _pctile d if y<. & a<. & b<. & c<., percent(33)
. reg y a b c if d>r(r1)
ben
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
