Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: Ranking observations of a variable across a set of variables
From
"Jennifer L. Milosch" <[email protected]>
To
[email protected]
Subject
Re: st: Ranking observations of a variable across a set of variables
Date
Wed, 02 Nov 2011 09:56:15 -0700
Thank you, this is exactly what I was looking for.
--
Jennifer L. Milosch
Ph.D. Candidate
Dept of Economics
UC Santa Barbara
Quoting Nick Cox <[email protected]>:
For a detailed review of this and similar problems, see
SJ-9-1 pr0046 . . . . . . . . . . . . . . . . . . . Speaking
Stata: Rowwise
(help rowsort, rowranks if installed) . . . . . . . . . . .
N. J. Cox
Q1/09 SJ 9(1):137--157
shows how to exploit functions, egen functions, and Mata
for working rowwise; rowsort and rowranks are introduced
Note that -egen-'s -rank()- function is not producing incorrect
results; it just does not produce what Jennifer wants and does not
claim to. It ranks observations on the values of a variable, not
variables on the values of a set of variables in each observation.
Nick
On Wed, Nov 2, 2011 at 5:02 AM, Tirthankar Chakravarty
<[email protected]> wrote:
You probably want Nick Cox's -rowranks- package, available from SSC:
*****************************************
clear*
input x1 x2 x3 x4
50 10 30 60
20 60 10 40
end
ssc install rowranks
rowranks x1-x4, generate(rank1-rank4) field
li
*****************************************
On Tue, Nov 1, 2011 at 8:24 PM, Jennifer L. Milosch
<[email protected]> wrote:
I am trying to find the rank of an observation of a variable
across a set of
variables. My data looks something like this:
x1|x2|x3|x4
50|10|30|60
20|60|10|40
I want to generate a variable for the rank of x1 compared to the values of
x1, x2, x3, and x4 for each observation in the data. I have tried using
-bysort x1 x2 x3 x4: egen rank1=rank(x1)-
but it is returning a variable of all ones, which is not correct.
Using the
data above, I'm look for variables that are:
rank1|rank2|rank3|rank4
2 |4 |3 |1
3 |1 |4 |2
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/