Filtering for one year
The filter verb extracts particular observations based on a condition. In this exercise you'll filter for observations from a particular year.
Questo esercizio fa parte del corso
Introduction to the Tidyverse
Istruzioni dell'esercizio
- Add a
filter()line after the pipe (%>%) to extract only the observations from the year 1957. Remember that you use==to compare two values.
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
library(gapminder)
library(dplyr)
# Filter the gapminder dataset for the year 1957
gapminder %>%