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.

The first step in strategic selection is understanding the fundamental divide in R’s approach to objects: Advanced Object-Oriented Programming in R: Stat...

Requires an external dependency; can lead to "non-idiomatic" R code if overused. 4. Reference Classes (RC): The Internal Alternative Methods belong to generic functions , not the

90% of R tasks, especially providing print() , summary() , or plot() methods for new data types. Pros: Minimal boilerplate; easy to learn; highly flexible. No formal validation; it relies on naming conventions (e

No formal validation; it relies on naming conventions (e.g., generic.class ). 2. S4: The Rigorous Contract

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