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”.

493

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

106

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 many types of C/C++ preliminaries are present in R?

Write a custom function in R?

Give some examples of the functions in stringr.

Vector v is c(1,2,3,4) and list x is list(5:8), what is the output of v*x[[1]]?

202

What is the of use Matrix package?

How do I sort in descending order in r?

What is a white noise model?

106

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

Name the functions which help in importing data from other applications in R?

Which packages are used to store and restore R objects to and from a file in R language?

What is the use of sample and subset functions in R programming language?

What is function in r?

What are functions of Random forest in R?

What does the term 'dreaded for loop' means?

What are r data types?

100

For More Un-Answered { R Programming } Questions Click Here