Explanation:The sequence does not have to be in order; you can specify any arbitrary integer vector. 5. Point out the wrong statement :
A. $ operator semantics are similar to that of [[
B. The [ operator always returns an object of the same class as the original
C. The $ operator is used to extract elements of a list or a data frame
D. All of the mentioned
Answer:A
Explanation:The sequence does not have to be in order; you can specify any arbitrary integer vector. 5. Point out the wrong statement :
A. $ operator semantics are similar to that of [[ B. The [ operator always returns an object of the same class as the original C. The $ operator is used to extract elements of a list or a data frame D. All of the mentioned
Explanation:The [[ operator is used to extract elements of a list or a data frame.It can only be used to extract a single element and the class of the returned object will not necessarily be a list or data frame. 6. What would be the output of the following code ?