What's the most common color?
Now let's join an additional table, colors, which will tell us the color of each part in each set, so that we can answer the question, "what is the most common color of a LEGO piece?"
Diese Übung ist Teil des Kurses
Joining Data with dplyr
Interaktive Übung
Versuche dich an dieser Übung, indem du diesen Beispielcode vervollständigst.
# Add an inner join for the colors table
sets %>%
inner_join(inventories, by = "set_num") %>%
inner_join(inventory_parts, by = c("id" = "inventory_id")) %>%
___