Control Structures in R Programming MCQ question and answer with solution | R Programming MCQs

A. function(x) { x * x }

B. func(x) { x * x }

C. function(x) { x / x }

D. function { x $ x }

A. Setwd("dipath")

B. Setwd(dir_path)

C. Setwd("dir_path")

D. Set("dir_path")

A. Perl

B. Python

C. Common Lisp

D. All of the mentioned

A. Warning in log(c(-1, 2)): NaNs produced

B. Error in log(c(-1, 2)): NaNs produced

C. Message

D. All of the mentioned

A. 10

B. 1

C. NULL

D. 5

A. warning()

B. error()

C. run()

D. message()

A. The traceback() function must be called immediately after an error occurs

B. The debugger calls the browser at the very low level of the function body

C. Every time you call the mod() function it will launch the interactive debugger

D. R provides only two tools to help you with debugging your code

A. Vectorizing the function can be accomplished easily with the Vectorize() function

B. There are different levels of indication that can be used, ranging from mere notification to fatal error

C. Vectorizing the function can be accomplished easily with the vector() function

D. Warnings are generated by the run() function

A. "a+b"

B. "a=b"

C. "a:b"

D. a*b

A. 1: mean(x)

B. Null

C. 0

D. 2