Nesting a data frame
Right now, the by_year_country data frame has one row per country-vote pair. So that you can model each country individually, you're going to "nest" all columns besides country, which will result in a data frame with one row per country. The data for each individual country will then be stored in a list column called data.
Questo esercizio fa parte del corso
Case Study: Exploratory Data Analysis in R
Istruzioni dell'esercizio
- Load the
tidyrpackage. - Use the
nest()function to nest all the columns inby_year_countryexceptcountry.
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
# Load the tidyr package
# Nest all columns besides country
by_year_country