Mapping Data and Finding Duplicates

In this lesson, data mapping will be disussed along with how to find and remove duplicates in data.

We'll cover the following

Mapping data

As the name suggests, this technique is used to map the values of a Series or a DataFrame. The current values in a Series or a DataFrame are made equivalent to some other values. Then, the pandas map function is used to either replace the mapped values or join them together. The map() function can also be used to fill in the values of new columns.

The following example might make it clear.

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