Adjacent is important.  

Linda

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Brian Schott
Sent: Monday, August 13, 2012 10:44 AM
To: [email protected]
Subject: Re: [Jprogramming] Amend adjacent columns

If you mean remove any duplicate, then this might work.

   f=:2 10$'ABCDEEEFGH'
   ~.&.(<"1&.|:) f
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