The “str” Function in R

• Package: Base R (no specific package required)

• Purpose: Displays the internal structure of R objects in a concise and readable form.

• General Class: Utility/Basic

• Required Argument(s):

• ...: One or more R objects.

• Notable Optional Arguments (defaults may be different for you, run strOptions() to check):

• max.level: Maximum level of nesting to print. The default is all levels.

• vec.len: Number of elements to display for atomic vectors. The default is 4.

• width: Maximum number of characters per line. The default is 52.

• digits.d: Number of digits to print for numeric vectors. The default is 3.

• strict.width: If TRUE, enforces the maximum width for atomic vectors. The default is FALSE.

• Example:

• # Example data frame
  data <- data.frame(
  Name = c("Alice", "Bob", "Charlie"),
  Age = c(25, 30, 35),
  Married = c(TRUE, FALSE, TRUE)
  )
  
  # Display the internal structure of the data frame
  str(data)

• In this example, the str function is used to display the internal structure of a data frame data, including the types and values of its columns. The result is printed to the console.