R Programming By Example

Lists

A list is an ordered collection of objects, like vectors, but lists can actually combine objects of different types. List elements can contain any type of object that exists in R, including data frames and functions (explained in the following sections). Lists play a central role in R due to their flexibility and they are the basis for data frames, object-oriented programming, and other constructs. Learning to use them properly is a fundamental skill for R programmers, and here, we will barely touch the surface, but you should definitely research them further.

For those familiar with Python, R lists are similar to Python dictionaries.

Lists can be explicitly created using the list() function, which takes an arbitrary number of arguments, ...