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Re:st: Handling string data


From   n j cox <n.j.cox@durham.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re:st: Handling string data
Date   Mon, 31 Jul 2006 12:04:59 +0100

Mingfeng Lin

I have tried to solve this myself with the reference, but no luck so
far.  My problem is to run a function on a string variable.  This is
the data that I have

Variable X:

x1,x2,x3
x1,x3
x2
x1,x3,x4,x5
x5,x6

I was tring to generate a dummy variable y=1 when x3 is contained in X
and 0 otherwise.  Is there a command to do this?

>>> There is a function you can use to do this.

gen byte y = strpos(X,"x3") > 0

In Stata 8 or earlier use -index()- not -strpos()-

Nick
n.j.cox@durham.ac.uk
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