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”.

518

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

126

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 is factor variable in r language?

Explain if control statements in r?

Explain general format of matrices in r?

Explain statistical functions performed by R?

Explain how to manipulate list elements in r?

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

How would you do a cross-product of two tables in r?

What is data import in r language?

What is the use of apply() in R?

How would you create a box-plot using “plotly”?

Describe substr() in r string manipulation?

126

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

Compare R with other technologies.

What is principal component analysis?

What is object-oriented programming in r?

101

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