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?

111

Describe nchar() in r string manipulation?

102

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?

120

Explain the significance of transpose in r language

176

Describe sprintf() in r string manipulation?

What is bootstrapping in r?

118

Explain more functions in brief in r?

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

147

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

143

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

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

106

Enlist some of the functions that r provides?

What is r programming?

Differentiate between k-means clustering and hierarchical clustering?

114

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Un-Answered Questions { R Programming }

What are the applications of R?

Explain disadvantages of density-based clustering in R?

What is the use of abline() function?

103

Explain statistical functions performed by R?

What are Ensemble Models in R?

123

How you can start the r commander gui?

Write the full form MANOVA and why is it used?

What makes a valid variable name in R?

127

Explain what is transpose?

100

Differentiate between library() and require()?

105

What do you understand by a workspace in r programming language?

How to read data from the keyboard?

102

Mention how you can produce co-relations and covariances?

What is a random walk model?

103

What are R Functions?

102

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