How do you declare a global variable in R?

  • By assigning a value to a variable outside of any function
  • By using the global() function to mark a variable as global
  • By using the global_var() keyword before variable declaration
  • All variables in R are global by default
In R, a global variable is declared by assigning a value to a variable outside of any function. By assigning a value to a variable in the global environment, it becomes a global variable that can be accessed from anywhere in the program.
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