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st: How to use r(p)
Suppose we want to limit observations where one variable records a larger value
than its top quartile, we can write as follows.
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.
FUKUGAWA Nobuya, Ph.D.
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