How do you use functions in R?

In R, functions are used to organize code into reusable blocks that can be called multiple times with different inputs. You can create your own functions using the `function()` keyword, specifying parameters and the code to be executed within the function. To call a function, simply type the function name followed by the necessary arguments in parentheses. Functions can also return values using the `return()` statement, allowing you to store or display the output of the function. Additionally, you can use built-in functions in R to perform common tasks, such as math operations, data manipulation, and plotting. Overall, functions in R are essential for writing efficient and modular code.

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