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?

100

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” ?

132

How will you create scatterplot matrices in r language?

Describe strsplit() in r string manipulation?

Explain for loop control statement in r?

Explain how to name the list elements in r?

153

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?

129

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

Un-Answered Questions { R Programming }

What are packages in r?

170

Explain how data is aggregated in r?

What does the term 'dreaded for loop' means?

How many data structures does r language have?

What data Visualizations in R you should learn?

Explain what is t-tests in r?

What is the use of apply() in R?

How would you facet the data using ggplot2 package?

Name some functions which can be used for debugging in r?

Which packages are used to store and restore R objects to and from a file in R language?

What is apply() function in r?

Why is R useful for data science?

101

What are sockets in r?

103

What is the use of sample and subset functions in R programming language?

What is function in r?

104

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