Question

How will you check if an element is present in a vector?

(a) Match()

(b) Dismatch()

(c) Mismatch()

(d) Search()

The question was asked in an interview for internship.

I need to ask this question from Functions topic in portion Control Structures, Functions, Scoping Rules, Loop Functions and Debugging of R Programming

Answer 1

Correct choice is (a) Match()

The explanation: It can be done using the match () function- match () function returns the first appearance of a particular element. The other way is to use %in% which returns a Boolean value either true or false.