Chapter 7. R Objects
All objects in R are built on top of a basic set of built-in objects. The type of an object defines how it is stored in R. Objects in R are also members of a class. Classes define what information objects contain, and how those objects may be used.
R provides some mechanisms for object-oriented programming (which doesn’t just mean “programming with objects”). This chapter focuses on built-in objects and how to use them and not on the object-oriented programming system. We’ll discuss object-oriented programming features like class definitions, inheritance, and methods in Chapter 10.
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