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

R Programming Interview Questions

Questions Answers Views Company eMail

What are the different packages in r?

How can you import data in r?

Enlist the advantages of using r languages?

Compare r and python?

What are the steps involved in building and evaluating a linear regression model in r?

What is rattle package in r?

What are the different data structures in r?

What are the features of r programming?

103

What is with () and by () function in r is used for?

How you can start the r commander gui?

Explain how data is aggregated in r?

Explain general format of matrices in r?

What does not ‘r’ language do?

Explain how you can create a table in r without external file?

489

Explain what is with () and by () function in r is used for?

105

Un-Answered Questions { R Programming }

Write a custom function which will replace all the missing values in a vector with the mean of values.

What do you understand by scientific data visualization in R?

How you can create a table in r without external file?

What is power analysis ?

Name the functions which help in importing data from other applications in R?

Compare r and python?

Explain the concept of principal component analysis?

What is R?

What is sapply() in r?

111

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

103

Give some examples of the functions in stringr.

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

Explain about “initialize()” function in r?

What is the main difference between an Array and a matrix?

What is r vector?

188

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