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?

How can you load a .csv file in r?

What is a factor?

What is a white noise model?

112

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

148

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?

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

103

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

Un-Answered Questions { R Programming }

What is length function in r?

What is a white noise model?

112

What is data structure in r?

What is object-oriented programming in r?

How do I sort in descending order in r?

How will you list all the datasets available in all R packages?

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

103

What is a factor variable, and why would you use one?

What does not ‘r’ language do?

From the below data-set, extract only those values where age>60 and sex=”f”.

514

How to use sapply in r?

How many types of object are present In R?

What are the tools for debugging in R?

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

Which data structure is used to store categorical variables?

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