Hello,
Can anyone explain me what is wrong in the following code? and in particular
why it is not
possible to change the class of an object thanks to the function with(). Does
an
alternative exist?
xxx <- data.frame(x = c("a","b","c","d","e"), y = c("1","2","3","4","5"))
str(xxx)
with(xxx, {
x <- as.character(x)
y <- as.numeric(y)
})
str(xxx) #no effect on the class of x and y
xxx$x <- as.character(xxx$x)
xxx$y <- as.numeric(xxx$y)
str(xxx)
Thanks
François Michonnneau
______________________________________________
[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
