Part 1: Import the following AirBnb data set ( http://becomingvisual.com/rfundamentals/airbnb.csv) (please note in some browsers, you may need to
copy/paste this hyperlink into address bar to access document). Create a set of functions that compute the following specific metrics by neighborhood:
average_number_of_reviews
average_price
Part 2: Use the functions created in part 1 to compute these metrics by room type and neighborhood.
Complete this as a R Markdown, document what you are doing using comments, and upload.