how to rename column names in r data frame code example

Example 1: r change column name in dataframe

df <- df %>%
  rename(newName1 = oldName1 ,
         newName2 = oldName2)

Example 2: rename column in r

my_data %>% 
  rename(
    sepal_length = Sepal.Length,
    sepal_width = Sepal.Width
    )