Summary
Congratulations on your excellent progress. In this chapter, we introduced you to three different levels of data cleaning and their relevance, along with the goals and tools of analytics. Moreover, we covered level I of data cleaning in more detail and practiced dealing with situations where this type of data cleaning is needed. Finally, by looking at three examples, we used the programming and analytics skills that we had developed in the previous chapters to effectively preprocess example datasets and meet the examples' analytical goals.
In the next chapter, we will focus on level II of data cleaning. Before moving forward and starting your journey on data cleaning level II, spend some time on the following exercises and solidify what you've learned.
