I have an excel with values:
Genre | Name | Year |
---|---|---|
Fantasy | Lord of the Rings | 2003 |
Action | Inception | 2010 |
Sci-fi | Interstellar | 2015 |
Comics | Avengers | 2010 |
Action | Jumanji | 2019 |
How can I calculate quantity of movies grouped by each genre using R?