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

R Programming Interview Questions

Questions Answers Views Company eMail

How would you create a factor in r?

What is a random walk model?

Give some examples of the functions in stringr.

How would you write a custom function in r? Give an example.

How do you build and evaluate a random forest in r?

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

What are the steps to build and evaluate a linear regression model in r?

What is the difference between a bar-chart and a histogram?

102

What do you know about the rattle package in r?

What is the difference between a bar-chart and a histogram? Where would you use a bar-chart and where would you use a histogram?

Given a vector of numbers, how would you turn the values into scientific notation?

How would you facet the data using ggplot2 package?

How would you find out the mean of one column with respect to another?

159

Tell me something about shinyr.

How can you simulate random walk model using r?

121

Un-Answered Questions { R Programming }

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

111

What are applications of recursion?

What is R Base package?

What is the tree in r?

117

What are statistical features of R?

What is Predictive analysis process in R?

121

What is the table in r?

Enlist the advantages of using r languages?

What is meant by character function in R?

140

What is transpose?

120

Why is R useful for data science?

101

Give the syntax for creating scatterplot matrices?

111

Mention what does not ‘R’ language do?

697

What is oop in r?

What is inheritance in s3 class?

103

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