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 Descriptive analysis methods in R?

105

What is Predictive analysis process in R?

121

Explain how to access list elements in r?

101

What is a loop in r?

100

What is the need for Predictive Analysis in R?

Why we need data visualization in R?

109

List out some of the function that R provides?

How many methods are there to save graphs?

What are useful s3 method functions?

108

What are the different packages in r?

Why is clustering required in data analysis?

What is meant by hierarchical Clustering in R?

105

What are tools for debugging in r?

103

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

114

How to create axes in the graph?

104

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