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10.2 Regular Expressions (Specific Character Functions (a\dc: allows you…
10.2 Regular Expressions
Definition
finding, replacing, or extracting content from text
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Repetitions
refers to occurrences in which it makes sense to specify that a pattern repeats a certain number of times within a string being analyzed
use the *, can be used to skip pattern entirely if it does not exist in a string
{} can bused to specify exactly how many times a pattern can appear with the possibility of including lower and upper bounds
Captures
explicit notation of any substring matching a RegEx pattern, can then be used to create a new column for use in machine learning
Uses
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Primary Goal: to extract instances of a specified pattern in a string, allowing for the creation of a new column containing either a TRUE or FALS value
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