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 data structures in r? Briefly explain about them.

Name some functions which can be used for debugging in r?

How would you measure correlation in r?

How would you create a scatterplot using ggplot2 package?

how would you build a scatter-plot using plotly?

What are the different import functions in r?

How do you install a package in r?

From the below data-set, extract only those values where age>60 and sex=”f”.

514

How would you make multiple plots onto a single page in r?

116

What is principal component analysis and how can you create a pca model in r?

Name some functions available in “dplyr” package.

How would you check the distribution of a categorical variable in r?

Explain about “initialize()” function in r?

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

How would you create a new r6 class?

Un-Answered Questions { R Programming }

Describe substr() in r string manipulation?

115

What is the purpose of using Next statement in R language?

What are prerequisites for r’s c interface?

What is a factor variable, and why would you use one?

What is CLI in R?

Explain what is transpose?

What is regular expression syntax?

What are connections In R?

Explain different types of objects present in R?

What is transpose?

114

How would you create a factor in r?

Which function in r language is used to find out whether the means of 2 groups are equal to each other or not?

135

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

105

How would you measure correlation in r?

Why we need data visualization in R?

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