What is a global variable in R?
- A variable defined outside of any function that can be accessed from anywhere in the program
- A variable defined inside a function that can be accessed only within that function
- A variable defined in the global environment that is read-only
- A variable that is used for global configuration settings in R
A global variable in R is a variable that is defined outside of any function and can be accessed from anywhere in the program. It is stored in the global environment and is accessible to all functions and code segments within the R session. Global variables can hold data or configuration settings that need to be accessed and modified across multiple functions or code blocks.
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