One of the most frequently seen text challenges is correcting spelling errors. This is all the more true when data is entered by casual human users, for instance, shipping addresses or similar.
Let's look at an example. We want to correct Gujrat, Gujart, and other minor misspellings to Gujarat. There are several good ways to do this, depending on your dataset and level of expertise. We will discuss two or three popular ways, and discuss their pros and cons.
Before I begin, we need to pay homage to the legendary Peter Norvig's Spell Correct. It's still worth a read on how to think about solving a problem and exploring implementations. Even the way he refactors his code and writes functions is educational.
His spell-correction module is not the simplest or best way of doing this. I recommend two packages: one with a bias toward simplicity, one...
