Exercise

Keeping the needed words

You are given the table with documents corpus and the table dictionary with one column - word, - containing the words we want to keep in the document-term matrix. Use inner_join to create a document-term matrix with the needed words.

Instructions

100 XP

Perform inner join on the table dictionary. The column names match, so you do not need to use the by argument.

Take Hint (-30 XP)