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 join multiple strings together?

What is a random walk model and how can you simulate it using r?

101

How can you load a .csv file in r?

What is a factor?

What is a white noise model?

130

What is a white noise model and how can you simulate it using r?

Explain the different data structures in r?

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

Give examples of “rbind()” and “cbind()” functions in r

156

What is the use of stringr package.

Explain about confusion matrix in r?

How would you extract one particular word from a string?

Given a vector of values, how would you convert it into a time series object?

105

What do you know about the evaluate_model() function from “statisticalmodeling” package

115

How would you fit a linear model over a scatter-plot?

Un-Answered Questions { R Programming }

Enlist the addition function used in R language?

What is the usage of the lattice package in R?

106

What is the function definition?

Which function helps you perform sorting in r language?

107

Explain how you can create a table in r without external file?

495

How can you simulate noise model using r?

Explain how to create a function in arguments using apply() in r?

What are packages in r?

170

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

100

How to construct a new s3 class?

How can you load and use csv file in R?

What are various steps involved in analytics project in r?

Why the stepaic()?

How data is aggregated in r?

How can you verify if a given object “X” is a matrix data object?

113

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