R Programming MCQs with answers Page - 6

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📊 R Programming
Q. What are the typeof(x) and mode(x) in the following R syntax?
x<-1:3
  • (A) Numeric, Integer
  • (B) Integer, Numeric
  • (C) Integer, Integer
  • (D) Numeric, Numeric
💬 Discuss
✅ Correct Answer: (B) Integer, Numeric
📊 R Programming
Q. R files has an extension . . . . . . . .
  • (A) .R
  • (B) .S
  • (C) .Rp
  • (D) .c
💬 Discuss
✅ Correct Answer: (A) .R
📊 R Programming
Q. How do you create an integer suppose 5 in R?
  • (A) 5L
  • (B) 5l
  • (C) 5i
  • (D) 5d
💬 Discuss
✅ Correct Answer: (A) 5L
📊 R Programming
Q. Why learning R becomes tough?
  • (A) Special files
  • (B) Functions
  • (C) Packages
  • (D) Special Cases
💬 Discuss
✅ Correct Answer: (D) Special Cases
📊 R Programming
Q. Advanced users can write . . . . . . . . code to manipulate R objects directly.
  • (A) C, C++
  • (B) C++, Java
  • (C) Java, C
  • (D) Java
💬 Discuss
✅ Correct Answer: (A) C, C++
📊 R Programming
Q. R language is a dialect of which of the following languages?
  • (A) S
  • (B) C
  • (C) MATLAB
  • (D) SAS
💬 Discuss
✅ Correct Answer: (A) S
📊 R Programming
Q. What is the meaning of "<-"?
  • (A) Functions
  • (B) Loops
  • (C) Addition
  • (D) Assignment
💬 Discuss
✅ Correct Answer: (D) Assignment
📊 R Programming
Q. Modification in Dundas BI is done . . . . . . . .
  • (A) Directly
  • (B) Indirectly
  • (C) Need access to Server
  • (D) Not known
💬 Discuss
✅ Correct Answer: (A) Directly
📊 R Programming
Q. Which programming language is more based on the results?
  • (A) R
  • (B) C
  • (C) C++
  • (D) Java
💬 Discuss
✅ Correct Answer: (A) R
📊 R Programming
Q. How could be the matrix constructed by using the following R code?
m <- matrix(1:6, nrow = 2, ncol = 3)
  • (A) row-wise
  • (B) column-wise
  • (C) any manner
  • (D) data insufficient
💬 Discuss
✅ Correct Answer: (B) column-wise

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