The “sign” Function in R

• Package: Base R (No specific package, it’s a built-in function)

• Purpose: To extract the sign of numeric vectors or values.

• General Class: Mathematical Computation

• Required Argument(s):

• x: A numeric vector or value for which the signs are to be extracted.

• Notable Optional Arguments:

• None

• Example:

• # Example usage
  values <- c(-3.14, 0, 5.55)
  
  # Extract the signs
  sign_values <- sign(values)
  
  print(sign_values)

• In this example, sign is a built-in function in base R, and it is used to extract the signs of numeric vectors or values. The x argument is the required numeric vector or value for which the signs are extracted. There are no notable optional arguments for this function. The result is a numeric vector or value where each element represents the sign of the corresponding element in the input vector. The sign is represented as -1 for negative values, 0 for zero, and 1 for positive values.