Business Data Understanding

In this chapter, we cover the second phase of CRISP-DM: business data understanding. Thus, readers are introduced to practical techniques for manipulating, visualizing, and understanding business data using R, focusing on two key packages: dplyr for data manipulation and ggplot2 for data visualization. It covers the essentials of business data description and discusses the importance of data quality and validation to ensure the integrity of business analyses. Additionally, the chapter lists useful R functions that are essential for daily tasks in business data understanding. The chapter ends with a practical business case exercise, where readers can apply their skills to visualize whisky data, demonstrating the real-world application of the discussed concepts and techniques.