Dear Joseph,
That's truly wonderful. Your solution works nicely. Thanks so much for
taking your time to help me. I have learnt a great deal from your code
which is great.
I am very fortunate!
With much gratitude!
Quang
On 9/29/07, Joseph Coveney <[email protected]> wrote:
> Although my suggestion was centered around -egen-, which is very often a
> convenience, you can usually do things more efficiently. For example, in
> this case, -_pctile if . . ., percentiles(75)- and then -replace p75 = r()
> in . . . - would avoid redundancy of -by . . .: egen . . . pctile()- where
> all of the other groups' results are calculated and discarded each time.
> There are other ways to polish the suggestion, too, and difference would be
> noticeable with large datasets and many groups.
>
> Joseph Coveney
>
>
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