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?

124

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?

103

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?

119

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 }

How many control statements are present in r?

102

How can we create a table using R language without using external files?

100

Explain r graphics devices?

What is the tree in r?

121

What is regular expression syntax?

104

How will you convert a factor variable to numeric in r language?

147

What is meant by hierarchical Clustering in R?

105

How would you facet the data using ggplot2 package?

Can we update and delete any of the elements in a list?

What do you understand by R cluster analysis?

121

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

119

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

How many data structures R has?

How many methods are there to save graphs?

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

103

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