Question

The dimension attribute is itself an integer vector of length _______ (a) 1 (b) 2 (c) 3 (d) 4 I had been asked this question during an interview for a job. Question is taken from Overview of R in division History, Overview and Getting Started of R Programming Select the correct answer from above options

Answer 1

The correct option is (b) 2 To explain I would say: It is itself an integer vector of length 2. The dimension attribute in R is an integer vector. Real values larger in modulus than the largest integer are coerced to NA. Matrices are vectors with a dimension attribute. The dimension attribute is itself an integer vector of length 2 (number of rows, number of columns).