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?

120

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?

115

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 the function used for adding datasets in R?

360

How will you create scatterplot matrices in r language?

What is an Atomic vector and how many types of atomic vectors are present in R?

167

What is Descriptive analysis in R?

111

Describe nchar() in r string manipulation?

Explain Disadvantages of R data visualization?

Why is R useful for data science?

101

What is a graphic device?

What are sockets in r?

103

How would you do a left and right join in r?

What are the data types in r on which binary operators can be applied?

113

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

102

What is power analysis ?

How to request an input from the user through keyboard and monitor?

What is r programming?

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