A Simple Guide to S3 Methods

TL;DR

This paper provides a straightforward guide to understanding and implementing S3 methods in R, emphasizing their importance and ease of use for enhancing function generalization across classes.

Contribution

It offers a clear, accessible explanation of S3 methods in R, encouraging more users to adopt this technique for better programming practices.

Findings

S3 methods enable flexible function behavior based on object class.

Implementing S3 methods is straightforward for R users.

Adopting S3 methods can improve code organization and reusability.

Abstract

Writing functions in R is an important skill for anyone using R. S3 methods allow for functions to be generalised across different classes and are easy to implement. Whilst many R users are be adept at creating their own functions, it seems that there is room for many more to take advantage of R's S3 methods. This paper provides a simple and targeted guide to explain what S3 methods are, why people should them, and how they can do it.