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Q99 / 100
What is the significance of the "ALTREP" (Alternative Representation) framework introduced in R 3.5?
Correct! Well done.
Incorrect.
The correct answer is B) It allows R objects like sequences (e.g. 1:1e9) to be represented compactly without materializing the full vector in memory, improving memory efficiency and performance
B
Correct Answer
It allows R objects like sequences (e.g. 1:1e9) to be represented compactly without materializing the full vector in memory, improving memory efficiency and performance
Explanation
ALTREP lets certain vectors (like integer sequences from ":" or memory-mapped data) be stored in compact alternative representations rather than fully expanded arrays, saving memory and time.
Progress
99/100