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?

102

What is sapply() in r?

121

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?

101

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?

137

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

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Un-Answered Questions { R Programming }

What are applications of Predictive analysis in R?

How to remove all the objects?

How would you create a new r6 class?

How would you fit a linear model over a scatter-plot?

I have a string “contact@dataflair.com”. Which string function can be used to split the string into two different strings “contact@dataflair” and “com”?

103

Give an example of 'dreaded for loop'?

102

What are the tools for debugging in R?

Mention how you can produce co-relations and covariances?

What are the steps involved in building and evaluating a linear regression model in r?

What are the features of r programming?

119

What is white noise model in r?

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

What is compiler in r?

100

Explain what is transpose?

100

In r how missing values are represented?

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