Find matches of a vector of strings in another vector of strings

Question

I\'m trying to create a subset of a data frame of news articles that mention at least one element of a set of keywords or phrases.

# Sample data frame of ar         


        

Answer 1

You can try pasting your "keywords" together and separate them with the pipe character (|) which will work like an "or", like this:

> articles[grepl(paste(keywords, collapse="|"), articles$text),]
  id                                                                         text
1  1     Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
2  2 tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
4  4    consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse