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Re: st: Finding the Most Common Combinations
From
Nick Cox <[email protected]>
To
[email protected]
Subject
Re: st: Finding the Most Common Combinations
Date
Thu, 30 Jun 2011 20:51:02 +0100
Some technique for sorting in rows is described at
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
after which -groups- (SSC) will show joint frequencies. See also
SJ-3-4 pr0011 . . . . . . . . Speaking Stata: Problems with tables, Part II
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N. J. Cox
Q4/03 SJ 3(4):420--439 (no commands)
reviews three user-written commands (tabcount, makematrix,
and groups) as different approaches to tabulation problems
Nick
On Thu, Jun 30, 2011 at 5:50 PM, Zach Levin <[email protected]> wrote:
> I have a dataset where each observation is a person and there are 5 variables for each of their health insurance plans. That is, PLAN1-PLAN5 each take on a number corresponding to a type of health insurance plan. My question is how I would go about finding the most combination of plans since the order in which they are reported is completely arbitrary (that is, PLAN1 does not correspond to the "first" plan, just the first one they reported).
>
> I am using Stata 11.
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