[R-SIG-Finance] [R] counting a sequence of charactors or numbers

roger koenker roger at ysidro.econ.uiuc.edu
Sun Oct 1 00:19:57 CEST 2006


url:    www.econ.uiuc.edu/~roger                Roger Koenker
email   rkoenker at uiuc.edu                       Department of Economics
vox:    217-333-4558                            University of Illinois
fax:    217-244-6678                            Champaign, IL 61820

On Sep 30, 2006, at 5:13 PM, Joe Byers wrote:

> I have the following sequence of characters.  These could be  
> integers as
> well.  For this problem, only two values are valid.
> S S S S S S W W W W W W W W S S S S S S S S W W W W W W W W S S S S  
> S S
> S S S S S S S W W W W W W W W W
> I need to determine the count of the classes/groups in sequence. as
> 6,8,8,8,13,9 where the sum of these equal my total observations.
> Any help is greatly appreciated.
> Thank you
> Joe
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> and provide commented, minimal, self-contained, reproducible code.

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