[R] count definite categories

[Peter Dalgaard BSA]

christian <ozric at web.de> writes:

> Hello,
> 
> i  calculate with the formula  conf=Sum(2*Xn^n)   
> definite number for binary configurations .
> How it is possible to count the  number of different conf ?   
> 
> example:
> 384
> 384
> 512
> 512
> 512
> 
> the result should be 2  .

length(unique(x))

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907
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