How's this?
> x = data.frame(ID=c("asdf","asdfasdf"),1:2)
> x
ID X1.2
1 asdf 1
2 asdfasdf 2
> nchar(as.character(x$ID))
[1] 4 8
>
Assuming ID is a factor, if not, you can remove the as.character().
On 9/5/07, João Fadista <[EMAIL PROTECTED]> wrote:
>
> Dear all,
>
> I would like to know how can I compute the length of a string in a
> dataframe. Example:
>
> SEQUENCE ID
> TGCTCCCATCTCCACGG HR04FS000000645
> ACTGAACTCCCATCTCCAAT HR00000595847847
>
> I would like to know how to compute the length of each SEQUENCE.
>
>
> Best regards,
> João Fadista
>
> [[alternative HTML version deleted]]
>
>
> ______________________________________________
> R-help@stat.math.ethz.ch mailing list
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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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