71. How many types of data structures does R language have?
72. To get the current date, the . . . . . . . . function will return a Date object which can be converted to a different class if necessary.
73. A matrix of scatterplots can be produced using . . . . . . . . function.
74. Point out the correct statement?
75. . . . . . . . . suspends the execution of a function wherever it is called and puts the function in debug mode.
76. Two vectors M and N are defined as M <- c(3, 2, 4) and N <- c(1, 2). What will be the output of vector Z that is defined as Z <- M*N.
77. A programmer builds a . . . . . . . . to avoid repeating the same task or reduce complexity.
78. Point out the correct statement?
79. Which of the following is valid body of split function?
80. Which of the following is apply function in R?
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