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 you can produce co-relations and covariances?

How data is aggregated in r?

Explain what is t-tests in r?

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

What is transpose?

114

What are the data structures in r that is used to perform statistical analyses and create graphs?

How can you simulate noise model using r?

What are the different components of grammar of graphics?

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

How can you create a pca model in r?

109

What is principal component analysis?

How would you find the number of missing values in a dataset and remove all of them?

Give examples of “select” and “filter” functions from “dplyr” package.

How would you create a box-plot using “plotly”?

How would you rename the columns of a dataframe?

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Un-Answered Questions { R Programming }

Explain the significance of transpose in r language

166

What is the use of stringr package.

Give some examples of the functions in stringr.

What is Visualization in R?

Explain what is transpose?

Compare R with other technologies.

Explain how to save graphs in R?

What is the use of stringr package. Give some examples of the functions in stringr.

Name some packages in r, which can be used for data imputation?

184

What is the tree in r?

113

What is reference class?

Why is clustering required in data analysis?

What is vectorization in r?

I have a string “contact@dataflair.com”. Which string function can be used to split the string into two different strings “contact@dataflair” and “com”?

Enlist the advantages of using r languages?

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