Left joining two sets by color
In the videos and the last exercise, you joined two sets based on their part and color. What if you joined the datasets by color alone? As with the last exercise, the Millennium Falcon and Star Destroyer sets have been created and preloaded for you:
millennium_falcon <- inventory_parts_joined %>%
filter(set_num == "7965-1")
star_destroyer <- inventory_parts_joined %>%
filter(set_num == "75190-1")
Diese Übung ist Teil des Kurses
Joining Data with dplyr
Interaktive Übung
Versuche dich an dieser Übung, indem du diesen Beispielcode vervollständigst.
# Aggregate Millennium Falcon for the total quantity in each part
millennium_falcon_colors <- millennium_falcon %>%
group_by(___) %>%
summarize(total_quantity = ___)