Explanation:na.strings takes a character vector. 5. Point out the wrong statement:
A. data.table inherits from data.frame
B. data.table is written in Java
C. data.table is faster at subsetting and updating data
D. None of the Mentioned
Answer:A
Explanation:na.strings takes a character vector. 5. Point out the wrong statement:
A. data.table inherits from data.frame B. data.table is written in Java C. data.table is faster at subsetting and updating data D. None of the Mentioned
Explanation:data.table is written in C. 6. Which of the following package is used for reading excel data ?