Question

Two vectors M and N are defined as M <- c(3, 2, 4) and N <- c(1, 2). What will be the output of vector Z that is defined as Z <- M*N.

(a) Z <- (3, 2, 4)

(b) Z <- (3, 6, 4)

(c) Z <- (3, 4, 5)

(d) Z <- (3, 4, 4)

I had been asked this question in quiz.

Question is from Functions in section Control Structures, Functions, Scoping Rules, Loop Functions and Debugging of R Programming

Answer 1

The correct option is (d) Z <- (3, 4, 4)

For explanation: In R language when the vectors have different lengths, the multiplication begins with the smaller vector and continues till all the elements in the larger vector have been multiplied.