Counting whole word/number occurrences with str_count in R

Question

Similar to this case, i would like to count the number of occurrences of multiple words and numbers that occur in a vector of sentences with str_count of the stringr package.

Answer 1

Using sprintf you can add word boundaries:

number_of_keywords_df <- str_count(df, paste(sprintf("\\b%s\\b", keywords), collapse = '|'))
number_of_keywords_df

Which yields

[1] 3 2 2