R Programming Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

R Programming Interview Questions

Questions Answers Views Company eMail

How to remove all the objects?

What are prerequisites for r’s c interface?

101

What is sapply() in r?

117

How will you combine multiple different string like “data”, “science”, “in” ,“r”, “programming” as a single string “data_science_in_r_programmming” ?

134

How will you create scatterplot matrices in r language?

100

Describe strsplit() in r string manipulation?

Explain for loop control statement in r?

Explain how to name the list elements in r?

168

Describe regex() in r string manipulation?

How will you merge two dataframes in r programming language?

What will be the output of log (-5.8) when executed on r console?

What are the rules to define a variable name in r programming language?

How many data structures does r language have?

Which data object in r is used to store and process categorical data?

133

How will you measure the probability of a binary response variable in r language?

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Un-Answered Questions { R Programming }

How can you resample statistical tests in r language?

How many methods are there to save graphs?

Explain what is transpose?

100

What is the random walk model in r?

102

Explain how to generate lists in r?

Describe grep() in r string manipulation?

What do you know about the evaluate_model() function from “statisticalmodeling” package

119

How will you list all the datasets available in all R packages?

What is with () and by () function in r is used for?

104

What are prerequisites for r’s c interface?

101

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

100

What is a file in r?

101

Explain r graphics devices?

Which data object in r is used to store and process categorical data?

133

Explain disadvantages of density-based clustering in R?

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