Combining filter, mutate, and arrange
In this exercise, you'll combine all three of the verbs you've learned in this chapter, to find the countries with the highest life expectancy, in months, in the year 2007.
Latihan ini adalah bagian dari kursus
Introduction to the Tidyverse
Petunjuk latihan
- In one sequence of pipes on the
gapminderdataset: filter()for observations from the year 2007,mutate()to create a columnlifeExpMonths, calculated as12 * lifeExp, andarrange()in descending order of that new column
Latihan interaktif praktis
Cobalah latihan ini dengan menyelesaikan kode contoh berikut.
library(gapminder)
library(dplyr)
# Filter, mutate, and arrange the gapminder dataset