October 2017
Intermediate to advanced
532 pages
16h 10m
English
Content preview from Pandas Cookbook
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How it works...
To select a subset of columns from a DataFrame, use a list of specific column names. For instance, movie[['movie_title', 'director_name']] creates a new DataFrame with only the movie_title and director_name columns. Selecting columns by name is the default behavior of the indexing operator for a pandas DataFrame.
Step 3 neatly organizes all of the column names into separate lists based on their type (discrete or continuous) and by how similar their data is. The most important columns, such as the title of the movie, are placed first.
Step 4 concatenates all of the lists of column names and validates that this new list contains the same exact values as the original column names. Python sets are unordered and the equality statement ...
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