R Programming Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

R Programming Interview Questions

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How would you join multiple strings together?

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

How can you load a .csv file in r?

What is a factor?

What is a white noise model?

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

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

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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?

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

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

Un-Answered Questions { R Programming }

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

List the functions available in “dplyr” package?

What is the random walk model in r?

What is the difference between library() and require() functions in r language?

What is correlation? How would you measure correlation in r?

What are the features of r programming?

How many tools for debugging present in r?

What is using all() and any()?

Explain what is pdv?

What is oop in r?

What will be the output of log (-5.8) when executed on r console?

What are tools for debugging in r?

What is the apply() family in r?

Give some examples of the functions in stringr.

Which data object in r is used to store and process categorical data?

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