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

R Programming Interview Questions

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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?

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?

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?

Un-Answered Questions { R Programming }

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

Write the r programming code for an array of words so that the output is displayed in decreasing frequency order?

What do you know about the rattle package in r?

How to create axes in the graph?

What are statistical and programming features of R?

What is procedural programming in r?

Who and When R discovered?

What are various steps involved in analytics project in r?

How R Commands are Written?

What is the use of sink(), Library () and search() function?

What is inheritance in s3 class?

How to compile and run code in R?

Explain about “initialize()” function in r?

Explain how to create a list in r?

Which data object in r is used to store and process categorical data?

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