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?

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?

Explain the significance of transpose in r language

131

Describe sprintf() in r string manipulation?

What is bootstrapping in r?

Explain more functions in brief in r?

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

107

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

105

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

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

Enlist some of the functions that r provides?

What is r programming?

Differentiate between k-means clustering and hierarchical clustering?

Un-Answered Questions { R Programming }

What is an Atomic vector and how many types of atomic vectors are present in R?

What are functions of Random forest in R?

In R how you can import Data?

How to read data from the keyboard?

Which function is used to create a histogram visualisation in r programming language?

Explain in brief preliminaries of C/C++?

What is a white noise model and how can you simulate it using r?

How R Commands are Written?

Explain how to name the list elements in r?

What is meant by character function in R?

100

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

How many control statements are present in r?

How will you merge two dataframes in r programming language?

What is the use of apply() in R?

What does not ‘r’ language do?

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