Question

__________ can contain heterogeneous inputs.

(a) Matrix

(b) Data Frames

(c) Matrix and Data Frames

(d) Does not exists

I got this question in quiz.

This intriguing question comes from Functions in division Control Structures, Functions, Scoping Rules, Loop Functions and Debugging of R Programming

Answer 1

Correct choice is (b) Data Frames

To explain: Data frame can contain heterogeneous inputs while a matrix cannot. In the matrix, only similar data types can be stored whereas in a data frame there can be different data types like characters, integers or other data frames.