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 }

Who and When R discovered?

What is a variable assignment?

104

What is the apply() family in r?

How to construct a new s3 class?

How can you simulate noise model using r?

What is recursive function in r?

What are sockets in r?

103

how to import data into R?

100

What are applications of Predictive analysis in R?

Explain how to manipulate list elements in r?

Explain general format of matrices in r?

What is mean in r?

109

Write a function in R language to replace the missing value in a vector with the mean of that vector?

170

Describe nchar() in r string manipulation?

Describe substr() in r string manipulation?

126

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