Control Structures in R Programming MCQ question and answer with solution

51

What is the memory limit in R for 32 bit system?

A) 8 TB B) 9TB C) 10TB D) 3GB

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Answer & Solution

Answer: Option D

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52

What will be the output of the following R code?

> nLL <- make.NegLogLik(normals, c(1, FALSE))
> optimize(nLL, c(1e-6, 10))$minimum

A) 1.217775 B) 1.800596 C) 3.73424 D) empty

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Answer & Solution

Answer: Option B

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53

. . . . . . . . variables are categorical variables which can hold either string or numeric values.

A) Factor B) Simpler C) Function D) Package

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Answer & Solution

Answer: Option A

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54

. . . . . . . . measures the probability of the binary response variable in R language.

A) Logical Regression B) Multivariate Regression C) Simpler Regression D) Statistics

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Answer & Solution

Answer: Option A

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55

. . . . . . . . is the best way for communicating the results of data analysis using the R language.

A) Single document B) Files C) Structures D) Loadings

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Answer & Solution

Answer: Option A

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56

Which function is difficult to implement?

A) Lapply B) Japply C) Vapply D) Zapply

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Answer & Solution

Answer: Option C

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57

. . . . . . . . allows you to modify the error behavior so that you can browse the function call stack

A) debug() B) trace() C) recover() D) traceback()

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Answer & Solution

Answer: Option C

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58

Which of the following is primary tool for debugging?

A) debug() B) trace() C) browser() D) traceback()

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Answer & Solution

Answer: Option A

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59

Point out the correct statement?

A) An environment is a collection of (symbol, value) pairs, i.e. x is a symbol and 3.14 might be its value B) If the value of a symbol is not found in the environment in which a function was defined, then the search is continued in the child environment C) After the top-level environment, the search continues down the search list until we hit the parent environment D) Dynamic scoping turns out to be particularly useful for simplifying statistical computations

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Answer & Solution

Answer: Option A

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60

How will you check if an element is present in a vector?

A) Match() B) Dismatch() C) Mismatch() D) Search()

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Answer & Solution

Answer: Option A

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