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?

What is sapply() in r?

111

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

128

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?

147

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?

121

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

Un-Answered Questions { R Programming }

How To Create New Variable In R Programming?

Explain how you can create a table in r without external file?

489

What is expected from running the command – strsplit(x,”e”)?

101

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

Why should you adopt R programming language?

What is the use of subset() function and sample() function in R ?

143

X is the vector c(5,9.2,3,8.51,na), what is the output of mean(x)?

1131

What makes a valid variable name in R?

115

Why is R important for data science?

Explain how to write files?

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

105

What are various ways to write la oop in r?

Explain the concept of principal component analysis?

How can you load and use csv file in R?

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

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