Chapter 10: User-Defined Functions and Classes to Automate Data Cleaning
There are a number of great reasons to write code that is reusable. When we step back from the particular data cleaning problem at hand and consider its relationship to very similar problems, we can actually improve our understanding of the key issues involved. We are also more likely to address a task systematically when we set our sights more on solving it for the long term than on the before-lunch solution. This has the additional benefit of helping us to disentangle the substantive issues from the mechanics of data manipulation.
We will create several modules to accomplish routine data cleaning tasks in this chapter. The functions and classes in these modules are examples ...
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