October 2019
Beginner to intermediate
674 pages
16h 43m
English
Content preview from Mastering pandas - Second Edition
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Validating data types
A data type is a property of a variable that Python uses to understand how to store and manipulate data. For instance, a program needs to understand that variables storing 5 and 10 are numeric to be able to add them and get 15, or that the variables storing cat and hat are strings so that they could be concatenated (added) together to get cathat. Hence it becomes a preliminary and cardinal property of any pandas DataFrame.
A user-defined comparison function can be used to validate the data types of the test DataFrame:
Validating data types of test DataFrame
File1 and File2 correspond to the test and validation datasets ...
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