R Programming Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

R Programming Interview Questions

Questions Answers Views Company eMail

Write the syntax to set the path for current working directory in r environment?

107

Describe nchar() in r string manipulation?

R programming language has several packages for data science which are meant to solve a specific problem, how do you decide which one to use?

What will be the result of multiplying two vectors in r having different lengths?

116

Explain the significance of transpose in r language

174

Describe sprintf() in r string manipulation?

What is bootstrapping in r?

116

Explain more functions in brief in r?

How will you convert a factor variable to numeric in r language?

141

Which function in r language is used to find out whether the means of 2 groups are equal to each other or not?

141

What is the difference between library() and require() functions in r language?

Explain the usage of which() function in r language?

100

Enlist some of the functions that r provides?

What is r programming?

Differentiate between k-means clustering and hierarchical clustering?

110

Un-Answered Questions { R Programming }

What are the different data structures in r? Briefly explain about them.

How can we create a table using R language without using external files?

100

What is the usage of the lattice package in R?

106

What are the tools for debugging in R?

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

What are statistical software and data analysis in r?

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

What is mean in r?

109

What is meant by ANOVA models in R?

What is s4 generic?

What data Visualizations in R you should learn?

What are connections In R?

What is function in r?

104

Why is R Important?

What is rattle package in r?

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