R Programming Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

R Programming Interview Questions

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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”.

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

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 }

What are the disadvantages of R?

Write the r programming code for an array of words so that the output is displayed in decreasing frequency order?

What is the usage of the lattice package in R?

What is using all() and any()?

Explain how to operate on lists in r?

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

How many data structures R has?

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

Explain about confusion matrix in r?

What is power analysis ?

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

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Mention how you can produce co-relations and covariances?

What are the advantages of R?

Name all control statements present in r?

What will be the output of log (-5.8) when executed on r console?

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