Chapter 10: Data Cleaning Level II – Unpacking, Restructuring, and Reformulating the Table

In level I data cleaning, we were only concerned about the neat and codable organization of our dataset. As we mentioned previously, level I data cleaning can be done in isolation, without having to keep an eye on what data will be needed next. However, level II data cleaning is deeper. It is more about preparing the dataset for analysis and the tools for this process. In other words, in level II data cleaning, we have a dataset that is reasonably clean and is in a standard data structure, but the analysis we have in mind cannot be done because the data needs to be in a specific structure due to the analysis itself, or the tool we plan to use for the analysis.

In this chapter, we will look at three examples of level II data cleaning that tend to happen frequently. Pay attention to the fact that, unlike level I data cleaning, where the examples were merely a source of data, the examples...