You could try this also:
cut(df$A, c(-Inf, 3, 8), labels = c('x', 'y'))
On Tue, Mar 30, 2010 at 8:30 AM, johannes rara <johannesr...@gmail.com> wrote:
> Hi,
>
> Is there an efficient way recoding variables in a data.frame using
> base R? My purpose is to create
> new variables and attach them into old data.frame. The basic idea is
> shown below, but how to create recoding for A, B and C and assing them
> into new variables?
>
> df <- data.frame(A = c(1:5),
> B = c(3,6,2,8,10),
> C = c(0,15,5,9,12))
>
> df$A[df$A <= 3] <- "x"
> df$A[df$A > 3 & df$A <= 8] <- "y"
> df$A[df$A <= 16] <- "z"
>
> Thanks,
> -J
>
> ______________________________________________
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--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O
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