Re: st: How to use r(p)

["FUKUGAWA, N." <nfukugawa@gmail.com>]

Dear all,
What if we want to run 3 regression models according to the classification of 
variable "d"?

centile d, centile(33)
centile d, centile(66)
reg y a b c if d<=r(c_1)
reg y a b c if d>r(c_1)&d<r(c_2)
reg y a b c if d>=r(c_2)

Thank you in advance.
--
FUKUGAWA Nobuya, Ph.D.
nfukugawa@gmail.com

Jean-Benoit Hardouin wrote:

> You can try
> . centile d, centile(33)
> . reg y a b c if d>r(c_1)
> Best,
> Jean-Benoit Hardouin
>
> FUKUGAWA, N. a écrit :
>
> > Dear all,
> > 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?
> > Or, is there any program to do the same?
> > Thanks in advance.
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