The “nest” Function in R

• Package: tidyr

• Purpose: To create a nested data frame column, where each row contains a nested data frame or list.

• General Class: Data Reshaping

• Required Argument(s):

• data: The data frame to reshape.

• ...: Columns to nest.

• Notable Optional Arguments:

• None.

• Example (with Explanation):

• # Load necessary packages
  library(tidyr)
  
  # Create a sample data frame
  data <- data.frame(
  Group = c("A", "A", "B", "B"),
  ID = 1:4,
  Value = c(10, 15, 20, 25)
  )
  
  # Nest the 'ID' and 'Value' columns into a single nested column 'data'
  result <- nest(data, data = c(ID, Value))
  
  # Display the result
  print(result)

• In this example, the nest function from the tidyr package is used to reshape the sample data frame data by nesting the ‘ID’ and ‘Value’ columns into a single nested column called ‘data’. Each row of the resulting data frame result contains a nested data frame with the ‘ID’ and ‘Value’ values for that row. This is useful for storing related data together in a structured format.