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?

108

Explain the significance of transpose in r language

166

Describe sprintf() in r string manipulation?

What is bootstrapping in r?

105

Explain more functions in brief in r?

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

137

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

135

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?

104

Un-Answered Questions { R Programming }

What is a factor?

What is an arbitrary function in r?

What is R Base package?

What is tcp/ip variable smc-r storage allocations?

103

What is the Use of String Utilities in the edtdbg Debugging Tool in R string manipulation?

274

What is sapply() in r?

111

What is rattle package in r?

Enlist some of the functions that r provides?

What is a dataframe in r?

What are the data structures in r that is used to perform statistical analyses and create graphs?

What is the purpose of using Next statement in R language?

What is iPlots?

125

What is mean in r?

101

How data is aggregated in r?

how can you add datasets in r?

102

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