ifelse is your friend:
> z <- c("male", "male", "female")
> z <- as.factor(z)
>
> z <- ifelse(z == "male", 3, 5)> z [1] 3 3 5 > class(z) [1] "numeric" >-- David Winsemius
On Jan 17, 2009, at 11:40 AM, Jörg Groß wrote:
Hi,I know how to convert a factor-variable into a numeric variable via as.numeric().But how can I control the values that are assigned? For example, I have this factor-variable: z <- c("male", "male", "female") z <- as.factor(z)And I want to convert male in 3 and female into the numeric value 5 (just for the example)so that I get: [1] 3 3 5 Thanks for any help! ______________________________________________ [email protected] 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.
______________________________________________ [email protected] 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.
