try this:

x <- c("A", "X", "F", "W", "G", "V", "L")
match(x, LETTERS)


I hope it helps.

Best,
Dimitris


Leandro Marino wrote:
 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
( lean...@cesgranrio.org.br

"Aquele que suporta o peso da sociedade
    é precisamente aquele que obtém
 as menores vantagens". (SMITH, Adam)

 Antes de imprimir pense em sua responsabilidade e compromisso com o MEIO AMBIENTE
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Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus University Medical Center

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