R help - Sep 2006 - counting a sequence of charactors or numbers

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

?rle

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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