Is it possible to swap columns around in a data frame using R?

Question

I have three variables in a data frame and would like to swap the 4 columns around from

\"dam\"   \"piglet\"   \"fdate\"   \"ssire\"

to

Answer 1

You can use subset's 'select' argument;

#Assume df contains "dam" "piglet" "fdate" "ssire"

newdf<-subset(df, select=c("piglet", "ssire", "dam", "tdate"))