November 2017
Beginner to intermediate
204 pages
5h 23m
English
Content preview from Practical Data Wrangling
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Understanding the need for pattern recognition
The simplest way to process the values of text fields to treat them as categorical variables. In a categorical variable, the data entries take on a fixed number of values. To illustrate working with categorical variables, consider a categorical field, such as the US states. If the state of Connecticut, for instance, were to appear in a large enough number of data entries, you might expect to see certain characteristic misspellings, such as the following:
- Conecticut
- Conneticut
- Connetict
An easy way to fix all of the misspellings might be to iterate through each of the data entries and check against a list of common misspellings as is done in the following demonstration. Note that the following ...
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