R: rename subset of variables in data frame

Question

I\'m renaming the majority of the variables in a data frame and I\'m not really impressed with my method.

Therefore, does anyone on SO have a smarter or faster way t

Answer 1

I would use ifelse:

names(temp.mtcars) <- ifelse(names(mtcars) %in% c("mpg", "cyl", "disp"),
                             names(mtcars),
                             paste("bar", names(mtcars), sep = "."))