Question

What will be the class of the vector if you concatenate a number and a character?

(a) Number

(b) Character

(c) Integer

(d) No class

This question was addressed to me in homework.

I'd like to ask this question from Functions topic in chapter Control Structures, Functions, Scoping Rules, Loop Functions and Debugging of R Programming

Answer 1

Correct answer is (b) Character

For explanation I would say: The class of the resulting vector if you concatenate a number and a character is Character class. Decimal values are called numeric in R. It is the default computational data type in R language.