Change selected elements of character vector

Question

Is there a shorter version for the folowing principle to rename certain columns of a data frame?

data1<-data.frame(\"a\"=1:3,\"b\"=1:3,\"c\"=1:3)

data1Names&         


        

Answer 1

setNames can be helpful

> setNames(data1, c("hello", "b", "world"))
  hello b world
1     1 1     1
2     2 2     2
3     3 3     3

another alternative

> names(data1)[names(data1) %in% c("a", "c")] <- c("hello", "world")
> data1
  hello b world
1     1 1     1
2     2 2     2
3     3 3     3