How do R language functions operate?

In R language, functions are blocks of code with specific functionality that can be called multiple times to carry out the same operation. Typically, functions start with the keyword “function,” followed by the function name and parameter list, and then the function body enclosed in curly braces, which contains the code for the function to execute.

When a function is called, the arguments passed to the function will be passed to the variables defined in the function body, and the function will execute the code in the function body. The function can return one or more values by using the return keyword to specify the return value. If no return value is explicitly specified, the function will return the result of the last executed expression.

In R language, functions can consist of built-in functions, custom functions, or functions imported from other packages. Users can create custom functions based on their needs to achieve specific functions or operations. The flexibility and reusability of functions make R language a popular tool for data analysis and statistical modeling.