Q101
Open questionWhich of the following should be preferred for evaluation from list of alternatives?
Select an option to see the answer and solution.
R Programming · all questionsControl Structures in R Programming
Control Structures in R Programming
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
207
Questions
6/11
Page
Pick an option on a question to see the right answer and solution.
Q102
Open questionWhat will be the class of the vector if you concatenate a number and a character?
Select an option to see the answer and solution.
Q103
Open questionWhich of the following R code snippet stops loop after 20 iterations?
Options are not available for this question.
Select an option to see the answer and solution.
Q104
Open question. . . . . . . . package is used to speed up data frame management code.
Select an option to see the answer and solution.
Q105
Open questionWhich of the following is multivariate version of lapply?
Select an option to see the answer and solution.
Q106
Open questionFunctions are defined using the . . . . . . . . directive and are stored as R objects.
Select an option to see the answer and solution.
Q107
Open questionMapReduce jobs submitted from either Oozie, Pig or Hive can be used to encode, improve and sample the data sets from . . . . . . . . into R.
Select an option to see the answer and solution.
Q108
Open questionWhat will be the output of the following R code?
> y <- "fruit"
> switch(y, fruit = "banana", vegetable = "broccoli", "Neither")Select an option to see the answer and solution.
Q109
Open questionWhich of the following R code generate a sequence of integers from 1 to 10?
Options are not available for this question.
Select an option to see the answer and solution.
Q110
Open question. . . . . . . . function is usually used inside another function and throws a warning whenever a particular package is not found.
Select an option to see the answer and solution.
Q111
Open questionThe . . . . . . . . function returns a list of all the formal arguments of a function.
Select an option to see the answer and solution.
Q112
Open questionWhat will be the output of the following R code?
> x <- list(a = 1:4, b = rnorm(10), c = rnorm(20, 1), d = rnorm(100, 5))
> sapply(x, mean)Select an option to see the answer and solution.
Q113
Open questionWhich function is used to create a histogram for visualisation in R programming language?
Select an option to see the answer and solution.
Q114
Open question. . . . . . . . function is used to apply an expression for a given dataset.
Select an option to see the answer and solution.
Q115
Open question. . . . . . . . function is used in applying a function each level of factors.
Select an option to see the answer and solution.
Q116
Open questionThe recover() function will first print out the function call stack when an . . . . . . . . occurs.
Select an option to see the answer and solution.
Q117
Open questionThe cumulative frequency distribution of a categorical variable can be checked using the . . . . . . . . function in R language.
Select an option to see the answer and solution.
Q118
Open questionR uses . . . . . . . . scoping6 0 or static scoping.
Select an option to see the answer and solution.
Q119
Open questionR has . . . . . . . . statements that provide explicit looping.
Select an option to see the answer and solution.
Q120
Open questionPoint out the wrong statement?
Select an option to see the answer and solution.