Now that you know how to transform your data, you'll want to know more about how to aggregate your data to make it more interpretable. You'll learn a number of functions you can use to take many observations in your data and summarize them, including count, group_by, summarize, ungroup, and slice_min/slice_max.
Exercise 1: Verba countExercise 2: Menghitung berdasarkan regionExercise 3: Menghitung warga negara per negara bagianExercise 4: Melakukan mutasi dan menghitungExercise 5: Kata kerja group_by, summarize, dan ungroupExercise 6: MerangkumExercise 7: Meringkas berdasarkan negara bagianExercise 8: Meringkas berdasarkan negara bagian dan wilayahExercise 9: Kata kerja slice_min dan slice_maxExercise 10: Memilih satu county dari tiap wilayahExercise 11: Menemukan negara bagian berpendapatan terendah di tiap wilayahExercise 12: Menggunakan summarize, slice_max, dan count secara bersamaan