The “rename_all” Function in R

• Package: dplyr

• Purpose: To rename all columns in a data frame based on specified functions or patterns.

• General Class: Data Manipulation

• Required Argument(s):

• data: The data frame to rename columns.

• Notable Optional Arguments:

• funs(): A list of functions or patterns to apply to column names.

• Example (with Explanation):

• # Load necessary packages
  library(dplyr)
  
  # Create a sample data frame
  data <- data.frame(
  ID = c(1, 2, 3),
  Value_A = c(10, 15, 20),
  Value_B = c(25, 30, 35)
  )
  
  # Rename all columns by adding "New_" prefix
  renamed_data <- data %>%
  rename_all(funs(paste("New_", ., sep = "")))
  
  # Display the renamed data
  print(renamed_data)

• In this example, the rename_all function from the dplyr package is used to rename all columns in the sample data frame data. The funs() argument specifies the renaming pattern, which adds a “New_” prefix to each column name. The result, renamed_data, contains the same data as data but with column names modified according to the specified pattern.