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?

155

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 is a factor? How would you create a factor in r?

What is TCP/IP in R?

105

What is the tree in r?

117

How many types of C/C++ preliminaries are present in R?

Why we need data visualization in R?

109

How will you convert a factor variable to numeric in r language?

141

give examples of while and for loop in r.

Explain how to save graphs in R?

What is a white noise model?

130

Explain how to generate lists in r?

Explain how to operate on lists in r?

How can you simulate noise model using r?

From the below data-set, extract only those values where age>60 and sex=”f”.

518

Explain more functions in brief in r?

What are applications of recursion?

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