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Re: st: creating combinations of all 49 variables and counting their frequencies
From
Nick Cox <[email protected]>
To
"[email protected]" <[email protected]>
Subject
Re: st: creating combinations of all 49 variables and counting their frequencies
Date
Sun, 2 Mar 2014 09:00:11 +0000
In principle there are 2^49 possible combinations but that number will
greatly exceed the size of your dataset and there is not much point
listing many, many that don't occur. -groups- (SSC) will show you
empirical frequencies but with the variables as 49 separate variables
display may be problematic. I'd concatenate the 49 variables to a
-str49- (e.g. using -egen, concat()-) and then you can just -tabulate,
sort-.
Matters of form: "Stata", not "STATA"; -tuples- is from SSC.
Nick
[email protected]
On 2 March 2014 05:09, Krisha Lim <[email protected]> wrote:
> I have 49 binary variables. I am interested in doing all combinations for those 49 variables and calculating the frequencies. I am not sure how to do this in STATA. The tuples command just generates all the tuples but it stopped after the 9999999 tuples. Would you be able to help me?
>
> To give a context, each binary variable indicates adoption (so 1= adopt). I want to figure out the most used technique or combination of techniques used in my dataset. I know this will be a very very large number, but hope there's a way to do it.
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