Anti-joins
Anti-joins are useful when you want to filter rows in one table not found in the other.
Your goal is to filter the population so that it does not contain the state capitals, and filter the area so that it only contains administrative areas, not the major Australian states.
यह अभ्यास पाठ्यक्रम का हिस्सा है
Joining Data with data.table in R
इंटरैक्टिव व्यावहारिक अभ्यास
इस अभ्यास को इस नमूना कोड को पूरा करके आज़माएँ।
# Anti-join capitals to population
population[___]