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R
Q81 / 100
What is the key difference between R's S4 class system and the S3 system?
Correct! Well done.
Incorrect.
The correct answer is B) S4 provides formal class definitions with validity checking and multiple dispatch, defined via setClass() and setGeneric(), unlike S3's informal attribute-based dispatch
B
Correct Answer
S4 provides formal class definitions with validity checking and multiple dispatch, defined via setClass() and setGeneric(), unlike S3's informal attribute-based dispatch
Explanation
S4 is a more rigorous OOP system with formally declared classes, slots with types, validity methods, and support for multiple dispatch, contrasting with S3's convention-based approach.
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81/100