Coding All-in-One For Dummies by Nikhil Abraham

Author:Nikhil Abraham
Language: eng
Format: epub
ISBN: 9781119363033
Publisher: Wiley
Published: 2017-05-01T00:00:00+00:00

0 NaN

1 Green

2 Red

3 Blue

4 NaN

dtype: category

Categories (3, object): [Blue, Red, Green]

0 True

4 True

dtype: bool

Looking at the list of car_data outputs, you can see that entries 0 and 4 equal NaN. The output from find_entries verifies this fact for you. If this were a large data set, you could quickly locate and correct errant entries in the data set before performing an analysis on it.

Renaming levels

There are times when the naming of the categories you use is inconvenient or otherwise wrong for a particular need. Fortunately, you can rename the categories as needed using the technique shown in the following example:

import pandas as pd

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