Using ratios to describe the frequency of a name

In the video, you learned how to find the difference in the frequency of a baby name between consecutive years. What if instead of finding the difference, you wanted to find the ratio?

You'll start with the babynames_fraction data already, so that you can consider the popularity of each name within each year.

Ця вправа є частиною курсу

Data Manipulation with dplyr

Переглянути курс

Інструкції до вправи

Arrange the data in ascending order of name and then year.
Group by name so that your mutate works within each name.
Add a column ratio containing the ratio (not difference) of fraction between each year.

Інтерактивна практична вправа

Спробуйте виконати цю вправу, доповнивши цей зразок коду.

babynames_fraction %>%
  # Arrange the data in order of name, then year 
  ___
  # Group the data by name
  ___
  # Add a ratio column that contains the ratio of fraction between each year 
  ___

Редагувати та запускати код