The “head” Function in R

• Package: Base R (no specific package required)

• Purpose: Returns the first n elements of a vector, matrix, or data frame.

• General Class: Utility/Basic

• Required Argument(s):

• x: A vector, matrix, or data frame.

• Notable Optional Arguments:

• n: The number of elements to display. The default is 6.

• nrow: The number of rows to display for a matrix or data frame. The default is n or 6 if n is not specified.

• ncol: The number of columns to display for a matrix or data frame. The default is 1 for a vector or ncol for a data frame.

• Example:

• # Example vector
  data <- c(2, 4, 6, 8, 10, 12, 14, 16, 18, 20)
  
  # Display the first 5 elements of the vector
  result <- head(data, n = 5)
  print(result)

• In this example, the head function is used to display the first 5 elements of the numeric vector data. The result is then printed to the console.