Q57
Which of the following finds row sums for each level of a grouping variable?
A.
as.numeric(x)
B.
rowsum(x, group, reorder = TRUE, ...)
AnswerC.
as.order(x)
D.
colSums (x, na.rm = FALSE, dims = 1)
Answer: Option B
Solution
Answer: Option B
No explanation is given for this question Let's Discuss on Board