Finding the year each name is most common
In an earlier video, you learned how to filter for a particular name to determine the frequency of that name over time. Now, you're going to explore which year each name was the most common.
To do this, you'll be combining the grouped mutate approach with a slice_max().
Latihan ini adalah bagian dari kursus
Data Manipulation with dplyr
Latihan interaktif praktis
Cobalah latihan ini dengan menyelesaikan kode contoh berikut.
# Calculate the fraction of people born each year with the same name
babynames %>%
group_by(___) %>%
mutate(___) %>%
ungroup() %>%
mutate(fraction = ___)