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st: Removing Repeated Phrases in String Variable


From   Becker Stein <becker.stein@aol.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: Removing Repeated Phrases in String Variable
Date   Sat, 14 Dec 2013 16:26:51 -0500 (EST)

Hi,

I was wondering if someone could help me remove repeated words/phrases in a string variable. My data has a lot repeats and I only want to keep the first instance of an item. Below is an example.

BMW North America; Honda; Toyota; Nissan; BMW North America; Mercedes Benz North America; Nissan; Subaru; Nissan; Ford

In the above example, I'd like to get rid of the extra instances of BMW North America and Nissan. Is there a way to do this? Thanks in advance for your help.

Becker



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