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Chapter 10.1.2 RegEx (Commands (escape character = \ (\d means any digit…
Chapter 10.1.2 RegEx
Commands
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The question mark (?) character means the character directly preceding it is not necessary for a match
whitespace \s finds a tab, space, new line
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square brackets allow for specification of a list of allowable characters for a specific character position
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putting a pipe | between 2 patterns, either pattern will be selected
Patterns
repetitions
occurrences in which it makes sense to specify a pattern that repeats a certain number of times within a string analyzed
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captures
explicit notation of any substring matching a pattern that can be used to create a new column for machine learning
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What is RegEx?
flexible language for finding, replacing, or exracting content
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