R Programming Interview Questions
Questions Answers Views Company eMail

How to use R from python?

59

How to compile and run code in R?

58

What are applications of Predictive analysis in R?

51

How do you get the standard deviation for a vector x?

77

What is iPlots?

97

Explain in brief preliminaries of C/C++?

80

I have a string “contact@dataflair.com”. Which string function can be used to split the string into two different strings “contact@dataflair” and “com”?

61

Explain different types of objects present in R?

61

how to import data into R?

68

How many types of C/C++ preliminaries are present in R?

47

How can you save your data in R?

64

What is regular expression syntax?

68

Vector v is c(1,2,3,4) and list x is list(5:8), what is the output of v*x[[1]]?

165

How do you check if “m” is a matrix data object in R?

56

What is JIT in R?

61


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Un-Answered Questions { R Programming }

What is recursion in r?

71


What is a random forest? How do you build and evaluate a random forest in r?

57


What are the features of r programming?

71


What is the difference between the data frame and a matrix in R?

58


Explain how to create a list in r?

40






What is debugging in R?

53


What are the steps to build and evaluate a linear regression model in r?

60


How will you combine multiple different string like “data”, “science”, “in” ,“r”, “programming” as a single string “data_science_in_r_programmming” ?

96


What is data structure in r?

68


What are prerequisites for r’s c interface?

60


What are the steps involved in building and evaluating a linear regression model in r?

53


Which function helps you perform sorting in r language?

61


How would you create a scatterplot using ggplot2 package?

50


What are statistical features of R?

43


Give examples of “select” and “filter” functions from “dplyr” package.

54