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?

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?

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

102

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?

How would you facet the data using ggplot2 package?

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

159

Tell me something about shinyr.

How can you simulate random walk model using r?

121

Un-Answered Questions { R Programming }

What is JIT in R?

103

Explain DBSCAN algorithm in R?

What is R studio and how to use it?

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

What is the use of “next” statement in R?

100

What is data import in r language?

What is variance in r?

What is a factor?

What are the different components of grammar of graphics?

Explain how to manipulate list elements in r?

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

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

How many types of vectors are present in r?

What is compiler in r?

What is power analysis ?

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