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Remove everything string after and including the nth occurence in a text...

Extracting "words" from string...

Concatenate while dropping specific value strings...

Find values in data frame that don't contain specific string and replace them in R...

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Pull items from a named list based on string pattern R...

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Replacing string values with dplyr...

Get strings before special character except apostrophe using stringr::word...

Remove string from column across group of rows in another column...

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In regex, mystery Error: assertion 'tree->num_tags == num_tags' failed in executing regex...

Count empty strings?...

Changing isolated words in R?...

How to extract birth and death year from string in R?...

Replace ordinal numbers in R?...

Combining singleton letters?...

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Extract *all* possible patterns in a variable...