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 Avalia??o
Funda??o CESGRANRIO
Rua Santa Alexandrina, 1011 - 2? andar
Rio de Janeiro, RJ - CEP: 20261-903
R (21) 2103-9600 R.:236
( (21) 8777-7907
( leandro at cesgranrio.org.br
"Aquele que suporta o peso da sociedade
? precisamente aquele que obt?m
as menores vantagens". (SMITH, Adam)
? Antes de imprimir pense em sua responsabilidade e compromisso com o MEIO
AMBIENTE
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 Avalia??o
> Funda??o CESGRANRIO
> Rua Santa Alexandrina, 1011 - 2? andar
> Rio de Janeiro, RJ - CEP: 20261-903
> R (21) 2103-9600 R.:236
> ( (21) 8777-7907
> ( leandro at cesgranrio.org.br
>
> "Aquele que suporta o peso da sociedade
> ? precisamente aquele que obt?m
> as menores vantagens". (SMITH, Adam)
>
> ? Antes de imprimir pense em sua responsabilidade e compromisso com o MEIO
AMBIENTE
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
--
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus University Medical Center
Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands
Tel: +31/(0)10/7043478
Fax: +31/(0)10/7043014
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: r-help-bounces at r-project.org
> [mailto:r-help-bounces at r-project.org] On Behalf Of Leandro Marino
> Sent: Friday, March 06, 2009 10:06 AM
> To: r-help at r-project.org
> 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 Avalia??o
> Funda??o CESGRANRIO
> Rua Santa Alexandrina, 1011 - 2? andar
> Rio de Janeiro, RJ - CEP: 20261-903
> R (21) 2103-9600 R.:236
> ( (21) 8777-7907
> ( leandro at cesgranrio.org.br
>
> "Aquele que suporta o peso da sociedade
> ? precisamente aquele que obt?m
> as menores vantagens". (SMITH, Adam)
>
> P Antes de imprimir pense em sua responsabilidade e
> compromisso com o MEIO AMBIENTE
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>