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?

113

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

130

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?

151

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?

123

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

Un-Answered Questions { R Programming }

What is principal component analysis?

What are the different import functions in r?

What do copy-on-change issues in r?

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

105

Why the cv.im()?

What are the different packages in r?

Can we update and delete any of the elements in a list?

What is regular expression syntax?

101

Explain how to access list elements in r?

How can we create a table using R language without using external files?

Explain how R programming applied to the real world?

What does the term 'dreaded for loop' means?

What is meant by hierarchical Clustering in R?

How many control statements are present in r?

100

How would you find the number of missing values in a dataset and remove all of them?

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