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You're reading from  Pandas 1.x Cookbook - Second Edition

Product typeBook
Published inFeb 2020
Reading LevelBeginner
PublisherPackt
ISBN-139781839213106
Edition2nd Edition
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Authors (2):
Matt Harrison
Matt Harrison
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Matt Harrison

Matt Harrison is an author, speaker, corporate trainer, and consultant. He authored the popular Learning the Pandas Library and Illustrated Guide to Python 3. He runs MetaSnake, which provides corporate and online training on Python and Data Science. In addition, he offers consulting services. He has worked on search engines, configuration management, storage, BI, predictive modeling, and in a variety of domains.
Read more about Matt Harrison

Theodore Petrou
Theodore Petrou
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Theodore Petrou

Theodore Petrou is the founder of Dunder Data, a training company dedicated to helping teach the Python data science ecosystem effectively to individuals and corporations. Read his tutorials and attempt his data science challenges at the Dunder Data website.
Read more about Theodore Petrou

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Constructing multiple Boolean conditions

In Python, Boolean expressions use the built-in logical operators and, or, and not. These keywords do not work with Boolean indexing in pandas and are respectively replaced with &, |, and ~. Additionally, when combining expressions, each expression must be wrapped in parentheses, or an error will be raised (due to operator precedence).

Constructing a filter for your dataset might require combining multiple Boolean expressions together to pull out the rows you need. In this recipe, we construct multiple Boolean expressions before combining them to find all the movies that have an imdb_score greater than 8, a content_rating of PG-13, and a title_year either before 2000 or after 2009.

How to do it…

  1. Load in the movie dataset and set the title as the index:
    >>> movie = pd.read_csv(
    ...     "data/movie.csv", index_col="movie_title"
    ... )
    
  2. Create a variable to hold each...
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Pandas 1.x Cookbook - Second Edition
Published in: Feb 2020Publisher: PacktISBN-13: 9781839213106

Authors (2)

author image
Matt Harrison

Matt Harrison is an author, speaker, corporate trainer, and consultant. He authored the popular Learning the Pandas Library and Illustrated Guide to Python 3. He runs MetaSnake, which provides corporate and online training on Python and Data Science. In addition, he offers consulting services. He has worked on search engines, configuration management, storage, BI, predictive modeling, and in a variety of domains.
Read more about Matt Harrison

author image
Theodore Petrou

Theodore Petrou is the founder of Dunder Data, a training company dedicated to helping teach the Python data science ecosystem effectively to individuals and corporations. Read his tutorials and attempt his data science challenges at the Dunder Data website.
Read more about Theodore Petrou