[R] Determining the length of unique items in a vector

[Alain Guillet]

  Hi,

You can try sapply(levels(as.factor(dat1)),nchar)

Alain

On 20-Aug-10 12:01, Ron Michael wrote:
> Dear all, let suppose I have following vector:
>
>> dat1<- c(rep("asd", 5), rep("xyz", 12), rep("erd", 17))
>> dat1<- dat1[sample(1:length(dat1), length(dat1), replace=F)]
>> dat1
>   [1] "erd" "xyz" "erd" "asd" "asd" "erd" "xyz" "asd" "erd" "erd" "asd" "xyz" "erd" "asd" "xyz" "xyz" "erd" "xyz" "erd"
> [20] "erd" "erd" "xyz" "xyz" "erd" "erd" "erd" "erd" "xyz" "xyz" "xyz" "erd" "xyz" "erd" "erd"
>
>   
> Here I want to know the length of replications for each unique items viz "asd", "xyz", and "erd". Is there any R function available to directly implement that?
>   
> Thanks,
>
>
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>
>
>
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-- 
Alain Guillet
Statistician and Computer Scientist

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