Learn what object-oriented programming (OOP) consists of, when to use it, and what OOP systems are available in R.  You'll also learn how R identifies different types of variable, using classes, types, and modes.

What is Object-Oriented Programming?

Should I OOP?

You've Already Been Working With Objects

The Nine Systems

Which Systems Should I Use?

How does R Distinguish Variables?

What's my type?

Assigning Classes

Make it Classy (1)

Make it Classy (2)

Introduction to Object-Oriented Programming

S3 is a very simple object-oriented system that lets you define different behavior for functions, depending upon their input argument. This chapter explains how to use S3, and how generics and methods work.

Generics and Methods or Function Overload

What's in a Name?

Creating a Generic Function

Creating an S3 Method (1)

Creating an S3 method (2)

Methodical Thinking

Finding Available Methods (1)

Finding Available Methods (2)

Method Lookup for Primitive Generics

Primitive Generic Functions

Who is Calling?

Too Much Class

Very Classy

Writing the Next Method

Using S3

Learn how to define R6 classes, and to create R6 objects.  You'll also learn about the structure of R6 classes, and how to separate the user interface from the implementation details.

The Object Factory

Specifying the Microwave Oven Class

Making Microwave Ovens

Hiding Complexity with Encapsulation

Learning to Cook

Close the Door

First Thing's First

Getting and Setting with Active Bindings

Read the Rating

Control the Power

Using R6

Learn how to inherit from an R6 class, and how the relationship between parent and child classes works.

Propagating Functionality with Inheritance

Specifying a Fancy Microwave Oven

Who's the Daddy?

Making a Fancy Microwave Oven

Embrace, Extend, Override

Extending the Cooking Capabilities

Overriding the Cooking Capabilities

Multiple Levels of Inheritance

Exposing your Parent

Over-Overriding the Cooking Capabilities

Remembering Your Origins

R6 Inheritance

Complete your mastery of R6 by learning about advanced topics such as copying by reference, shared fields, cloning objects, and finalizing objects.

Environments, referentiegedrag en gedeelde velden

Werken met environments (1)

Werken met environments (2)

Statische elektriciteit

R6-objecten klonen

Attack of the Clones (1)

Attack of the Clones (2)

Zet het uit

The Final Countdown

Dit is het einde (van een R6-object)

Advanced R6 Usage

Cooking times (SQLite file)

Objectgeoriënteerd programmeren (OOP) laat je relaties vastleggen tussen functies en de objecten waarop ze kunnen werken, zodat je de complexiteit in je code beter beheert. Deze cursus is voor gevorderde beginners en biedt een introductie tot OOP met de S3- en R6-systemen. S3 is een handig hulpmiddel voor dagelijks R-programmeerwerk dat sommige functies die je schrijft eenvoudiger maakt. R6 is vooral nuttig voor sectorspecifieke analyses, werken met web-API’s en het bouwen van GUI’s.

Introduction to Writing Functions in R

Beheer complexiteit in je code met objectgeoriënteerd programmeren via S3- en R6-systemen.

Objectgeoriënteerd programmeren met S3 en R6 in R

Houd je code overzichtelijk met objectgeoriënteerd programmeren met de S3- en R6-systemen.

R-ontwikkelaar

Basisprincipes van R-programmeren

The Final Countdown

Objectgeoriënteerd programmeren met S3 en R6 in R

Praktische interactieve oefening