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 create a factor in r?

What is a random walk model?

103

Give some examples of the functions in stringr.

How would you write a custom function in r? Give an example.

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

How would you do a cross-product of two tables in r?

What are the steps to build and evaluate a linear regression model in r?

103

What is the difference between a bar-chart and a histogram?

108

What do you know about the rattle package 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?

Given a vector of numbers, how would you turn the values into scientific notation?

102

How would you facet the data using ggplot2 package?

How would you find out the mean of one column with respect to another?

163

Tell me something about shinyr.

How can you simulate random walk model using r?

123

Un-Answered Questions { R Programming }

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

What is r’s c interface?

112

What are applications of Predictive analysis in R?

Write the full form MANOVA and why is it used?

Why the stepaic()?

What is a factor? How would you create a factor in r?

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

107

What is mean in r?

115

R programming language has several packages for data science which are meant to solve a specific problem, how do you decide which one to use?

Why the cv.im()?

What is data mining and what data miners do in R?

What is regular expression syntax?

105

How can you simulate noise model using r?

103

What is a file in r?

101

What are the features of r programming?

119

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