Advanced Object-oriented Programming In R: - Stat...

Methods belong to generic functions , not the objects themselves. When you call plot(x) , R looks at the class of x and decides which plot method to run.

S3 is R’s original, informal OOP system. It is essentially a list with a "class" attribute. Advanced Object-Oriented Programming in R: Stat...

In the R ecosystem, "Advanced OOP" doesn't mean just one thing. Unlike Java or Python, R offers several distinct object-oriented systems, each designed for different architectural needs. Choosing the right one is the difference between a clean, maintainable package and a tangled mess of code. The Landscape: Functional vs. Encapsulated OOP Methods belong to generic functions , not the

Strict type checking; multiple dispatch (methods can choose logic based on multiple arguments). Cons: High "ceremony" and steep learning curve. 3. R6: The Modern Powerhouse It is essentially a list with a "class" attribute

Advanced Object-Oriented Programming in R: Strategic Selection

S4 is a more formal version of S3, requiring explicit class definitions with "slots" and typed data.

Encapsulation (private vs. public fields); reference semantics (modify objects in-place); method chaining.