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?

118

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 }

How can you load and use csv file in R?

What is the of use Matrix package?

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

How you can produce co-relations and covariances?

What is data import in r language?

How to compile and run code in R?

What is a motivation behind data visualization in R?

Explain how R programming applied to the real world?

What is the difference between the data frame and a matrix in R?

X is the vector c(5,9.2,3,8.51,na), what is the output of mean(x)?

1131

What is reference class?

What is function definition?

How do I sort in descending order in r?

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

105

What is the use of apply() in R?

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