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 would you join multiple strings together?

101

What is a random walk model and how can you simulate it using r?

105

How can you load a .csv file in r?

What is a factor?

What is a white noise model?

133

What is a white noise model and how can you simulate it using r?

101

Explain the different data structures in r?

What is a random forest? How do you build and evaluate a random forest in r?

Give examples of “rbind()” and “cbind()” functions in r

162

What is the use of stringr package.

Explain about confusion matrix in r?

How would you extract one particular word from a string?

Given a vector of values, how would you convert it into a time series object?

113

What do you know about the evaluate_model() function from “statisticalmodeling” package

119

How would you fit a linear model over a scatter-plot?

Un-Answered Questions { R Programming }

How can you load and use csv file in R?

List the functions available in “dplyr” package?

What is a dataframe in r?

How would you create a new r6 class?

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

What are the tools for debugging in R?

What do you understand by a workspace in r programming language?

Why are the VCD and lattice packages used?

101

How many types of functions are there in R string manipulation?

112

What is a motivation behind data visualization in R?

Describe grep() in r string manipulation?

How do I sort in descending order in r?

100

What are R topical programming and statistical relevance?

120

What are features of r functions?

What is recursion in r?

114

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