Renaming a sequence of variable names in a data frame

Question

I have 5 columns in a data frame, and I would like to rename the variable names as Var1, Var2, Var3, Var4, Var5.

My current approach is not very convenient:

names(mydata)[1:10] <- c("Var1", "Var2", "Var3", "Var4", "Var5")

Is there a better way so that when I have 100 variables, I don’t need to enter all 100 names?

+3

user1319866 Apr 16 '12 at 19:06

2 answers

42- · Answer 1 · 2012-04-16T19:08:34+0000

names(mydata)[1:100] <- paste("Var", 1:100, sep="")

Greg snow · Answer 2 · 2012-04-16T20:01:34+0000

The function is sprintfperfect for this:

names(mydata)[1:100] <- sprintf("Var%d", 1:100)

or

names(mydata)[1:100] <- sprintf("Var%03d", 1:100)

Depending on whether you want names like "Var1", "Var2", ... or "Var001", "Var002", ...