r - change column name code example

Example 1: r set dataframe column names

R> X <- data.frame(bad=1:3, worse=rnorm(3))
R> X
  bad     worse
1   1 -2.440467
2   2  1.320113
3   3 -0.306639
R> colnames(X) <- c("good", "better")
R> X
  good    better
1    1 -2.440467
2    2  1.320113
3    3 -0.306639

Example 2: r - change column name

colnames(df)[colnames(df) == "name"] <- "new_name"

Example 3: r dataframe change column name

names(df)[1] <- paste("newName")

Example 4: rename columns based on a variable in r

df <- rename(df, new_name = old_name) #For renaming dataframe column
 
tbl <- rename(tbl, new_name = old_name) #For renaming tibble column
 
tbl <- tbl %>% rename(new_name = old_name) #For renaming tibble column using dplyrpipe 
                                           #operator

Example 5: r set dataframe column names

R> colnames(X)[2] <- "superduper"