In this chapter, we learned how to manage data by changing labels, how to create new variables, and how to replace the existing variables and make them better from a modeling perspective. We also learned how to drop and keep the important variables for analysis, how to summarize the data tables into report formats, and how to append or merge different data files.

In one sentence, you learned how to prepare reports and prepare the data for further graphs and modeling assignments.

In the next chapter, we will talk about the graphical interpretation of the data and the visualization of the data for a better understanding of the data you are handling.