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

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Un-Answered Questions { R Programming }

What is length function in r?

106

What is the reshaping of data in R?

132

Explain the programming features of R?

163

What is meant by hierarchical Clustering in R?

101

What is string manipulation in R?

What is Descriptive analysis in R?

111

Describe nchar() in r string manipulation?

What is the difference between the data frame and a matrix in R?

What is compiler in r?

Explain what is t-tests in r?

What are R topical programming and statistical relevance?

120

What is reference class?

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

168

Given a vector of values, how would you convert it into a time series object?

105

What is a factor?

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