Try this:

table(strsplit(A, "?")[[1]])

On Tue, Jan 18, 2011 at 10:51 AM, ADias <diasandre@gmail.com> wrote:

>
> Hi,
>
> I have this character vector:
>
> A<-c("Tell me how many different letter this vector has?")
>
> Is there a way with R that it can let me know how many different letters I
> have on this vector?
>
> If I use nchar(A) que gives me the number 50. With this function he is
> counting all the letters present and also spaces between the words. Can we
> also not count the spaces between words?
>
> Then after I knew how many different letters there were on the vector I
> wanted to table the number of times each letter is present to calculate the
> relative frequency of each.
>
> Is this possible with R?
>
> Many thanks
> A.Dias
> --
> View this message in context:
> http://r.789695.n4.nabble.com/Relative-frequency-on-a-character-vector-tp3221319p3221319.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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