Explanation:Every environment has a parent environment and it is possible for an environment to have multiple “children”. 8. The ________ for R are the main feature that make it different from the original S language
A. scoping rules
B. closure rules
C. environment rules
D. All of the mentioned
Answer:A
Explanation:Every environment has a parent environment and it is possible for an environment to have multiple “children”. 8. The ________ for R are the main feature that make it different from the original S language
A. scoping rules B. closure rules C. environment rules D. All of the mentioned
Explanation:This function never actually uses the argument b, so calling f(2) will not produce an error because the 2 gets positionally matched to a. 9. The _________ function is a kind of “constructor function” that can be used to construct other functions.