You can easily write a simple function to do that:
letters2num <- function(x) {
nletters <- 1:length(LETTERS)
names(nletters) <- LETTERS
nletters[x]
}
> x <- c("A", "X", "F", "W", "G", "V", "L")
> letters2num(x)
A X F W G V L
1 24 6 23 7 22 12
-Christos
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Leandro Marino
> Sent: Friday, March 06, 2009 10:06 AM
> To: [email protected]
> Subject: [R] Numbers
>
> Hi,
>
> I know the function LETTERS, but, now I have some letters to
> convert it in numbers, like A=1,B=2, etc... Is any function
> to do that?
>
> Atenciosamente,
> Leandro Lins Marino
> Centro de Avaliação
> Fundação CESGRANRIO
> Rua Santa Alexandrina, 1011 - 2º andar
> Rio de Janeiro, RJ - CEP: 20261-903
> R (21) 2103-9600 R.:236
> ( (21) 8777-7907
> ( [email protected]
>
> "Aquele que suporta o peso da sociedade
> é precisamente aquele que obtém
> as menores vantagens". (SMITH, Adam)
>
> P Antes de imprimir pense em sua responsabilidade e
> compromisso com o MEIO AMBIENTE
>
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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.
>
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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.
