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 }

Name various sectors that are using R?

113

Give the command to check if the element 15 is present in vector x?

105

Differentiate between k-means clustering and hierarchical clustering?

110

What is the use of abline() function?

What is expected from running the command – strsplit(x,”e”)?

109

How can you save your data in R?

100

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

What is oop in r?

What is median in r?

102

What are various ways to write la oop in r?

Explain the different data structures in r?

What is tcp/ip variable smc-r storage allocations?

107

Why the stepaic()?

What is an arbitrary function in r?

What is the use of sink(), Library () and search() function?

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