Have you seen -relrank- from SSC (type -ssc install relrank-)?
I think it does what you want. Example:
. clear
. set obs 1000
. gen x=_n
. gen s=20 in 1
. relrank s, ref(x) g(p)
. di p[1]
.02
I also have a Mata version of the -relrank- program, if you are
interested.
ben
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of
> NEYMOTIN, FLORENCE
> Sent: Tuesday, July 26, 2005 12:46 AM
> To: [email protected]
> Subject: st: percentiles and locating a scalar in there.
>
>
> Hi, I have a question regarding percentiles that I've been
> having some trouble with...suppose that
> you have a variable x, and you have a scalar s, and you'd
> like to know at about what percentile of
> the x variable the s scalar falls. For instance, suppose
> x=1,2,3,...,1000. Then if you have
> s=20, it should be assigned the percentilie value of the 2nd
> percentile. Is there a way to do
> this easily in stata? (I wanted to assign the scalar a n
> approximate percentile EVEN IF IT'S NOT A
> VALUE in the variable itself so it can't be located in there)
> Everything I could think of would
> take quite a while.
> Thank you for your help,
> Florence
> *
> * 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/
>
*
* 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/
