Using `mutate()` and `across()` for Specific Rows in Dplyr: A Flexible Approach to Data Manipulation

Mastering Regular Expressions in R for Powerful String Manipulation

Separating Sentences When Whitespace Is Missing Using R's Stringr Package and Regular Expressions

Renaming Columns in R Using str_replace_all for More Than Two String Types

Removing First 4 Words after a Certain String Pattern in R