Tags / extract
Using Regular Expressions (Regex) to Extract Values from Columns Without Replacing Original Data in R with dplyr Package
Extracting Sentences from Emails Containing HTML Tags Using Regular Expressions
Referencing Variables Outside a do Loop in R: A Statistical Analysis Approach
Extracting Values from a Variable with Multiple Levels of Another Variable in R
Finding Variables for pandas.eval() using Regex or the Same Expression Parsers as pandas