DATA STRUCTURES

In this section, the main types of objects used in R will be introduced. Specifically, the main structures in which data can be organized: Vectors, Matrices, Data Frames, and Lists.

For each of them, we will describe their characteristics and see how to create, modify, and manipulate them as needed.

The chapters are organized as follows:

• Chapter 7 - Vectors. We will learn the characteristics and use of vectors, also focusing on the different data types.
• Chapter 8 - Factors. We will learn the characteristics and use of factors, which are a specific type of vector used for categorical and ordinal variables.
• Chapter 9 - Matrices. We will learn the characteristics and use of matrices, also introducing arrays.
• Chapter 10 - Data Frames. We will learn the characteristics and use of data frames, the most commonly used object in data analysis.
• Chapter 11 - Lists. We will learn the characteristics and use of lists.