Book Image

Learning pandas - Second Edition

By : Michael Heydt
Book Image

Learning pandas - Second Edition

By: Michael Heydt

Overview of this book

You will learn how to use pandas to perform data analysis in Python. You will start with an overview of data analysis and iteratively progress from modeling data, to accessing data from remote sources, performing numeric and statistical analysis, through indexing and performing aggregate analysis, and finally to visualizing statistical data and applying pandas to finance. With the knowledge you gain from this book, you will quickly learn pandas and how it can empower you in the exciting world of data manipulation, analysis and science.
Table of Contents (16 chapters)

Removing categories

Categories can be removed by using the .remove_categories() method. Values that are removed are replaced by np.NaN. The following screenshot demonstrates this by removing the bronze category: