Question

If a programmer wants the output to be a list then ___________ function is used.

(a) Lapply

(b) Sapply

(c) Vapply

(d) Zapply

I got this question during an online interview.

I want to ask this question from Functions in division Control Structures, Functions, Scoping Rules, Loop Functions and Debugging of R Programming

Answer 1

Right answer is (b) Sapply

The explanation is: sapply() function does the same jobs as lapply() function but returns a vector. We can use a user built-in function into lapply() or sapply(). We create a function named avg to compute the average of the minimum and maximum of the vector.