Reading Datasets MCQ

Test your knowledge with important Reading Datasets MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Reading Datasets MCQs on Bissoy. Bissoy App

• Which of the following is used for reading tabular data?
  ক

  read.csv

  খ

  dget

  গ

  readLines

  ঘ

  writeline
• Which of the following statement changes column name to h and f?
  ক

  colnames(m) <- c(“h”, “f”)

  খ

  columnnames(m) <- c(“h”, “f”)

  গ

  rownames(m) <- c(“h”, “f”)

  ঘ

  rownames(m) <- c(“f”, “f”)
• Data frames can be converted to a matrix by calling data _______
  ক

  as.matr()

  খ

  as.mat()

  গ

  as.matrix()

  ঘ

  as.max()
• Which of the following code snippet will create a vector with NAs in it?
  ক

  x >- c(1, 2, NA, 10, 3)

  খ

  x >- cNA(1, 2, NA, 10, 3)

  গ

  x >- NA(1, 2, NA, 10, 3)

  ঘ

  x >- NA(1, 5, NA, 10, 8)
• The ________ function takes an arbitrary number of arguments and concatenates them one by one into character strings.
  ক

  copy()

  খ

  paste()

  গ

  bind()

  ঘ

  del()