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?

107

How can you load a .csv file in r?

What is a factor?

What is a white noise model?

135

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

103

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

164

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 }

Explain the usage of which() function in r language?

106

Why we need data visualization in R?

109

Explain different types of atomic vectors in R?

Explain about confusion matrix in r?

What is the difference between a bar-chart and a histogram? Where would you use a bar-chart and where would you use a histogram?

How to rename a variable?

What are problems with R clustering?

169

What are statistical features of R?

What is power analysis ?

Explain the different data structures in r?

What is bytecode compilation?

132

Explain advantages of density-based clustering in R?

What are methods for character functions in R?

106

What are Features of Recursion?

What is scan() in r?

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