Unnesting a data frame
You now have a tidied version of each model stored in the tidied column. You want to combine all of those into a large data frame, similar to how you combined the US and UK tidied models earlier. Recall that the unnest() function from tidyr achieves this.
Bu egzersiz, kursun bir parçasıdır
Case Study: Exploratory Data Analysis in R
Egzersiz talimatları
- Add an
unnest()step to unnest the tidied models stored in thetidiedcolumn. Save the result ascountry_coefficients. - Print the resulting
country_coefficientsobject to the console.
Uygulamalı etkileşimli egzersiz
Bu egzersizi bu örnek kodu tamamlayarak deneyin.
# Add one more step that unnests the tidied column
___ <- by_year_country %>%
nest(-country) %>%
mutate(model = map(data, ~ lm(percent_yes ~ year, data = .)),
tidied = map(model, tidy))
# Print the resulting country_coefficients variable