Working with Data and Datasets

This chapter reviews the basics of working with data and datasets in the Wolfram Language. It starts by reviewing how to apply functions to a list, followed by how to define user functions that can be used throughout a notebook. Next, you are introduced to how to write code in one of the powerful syntaxes used in the Wolfram Language, called pure functions. Naturally, you then delve into associations, explaining how to associate keys with values and why they are fundamental for proper dataset construction in the Wolfram Language. The chapter concludes with an overview of how associations are abstract constructions of hierarchical data representations.