Daily trolley ridership rows must not let next month’s fares appear in this month’s training fold. Which split should they use, and what is the trap?
Select an answer to reveal the explanation.
Short Explanation
Think of daily trolley ridership where next month’s fares must not sit in this month’s training fold. Use a time-based split. A shuffled random split is the trap.
Full Explanation
Use a time-based split so future observations cannot leak into training. A shuffled random split is the trap on time-ordered rows. Skipping the split and Athena are not that fold.