Explanation:The value returned by the call to function is a function. 6. You can check to see whether an R object is NULL with the _________ function.
A. is.null()
B. is.nullobj()
C. null()
D. All of the mentioned
Answer:A
Explanation:The value returned by the call to function is a function. 6. You can check to see whether an R object is NULL with the _________ function.
A. is.null() B. is.nullobj() C. null() D. All of the mentioned