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 you can produce co-relations and covariances?

How data is aggregated in r?

Explain what is t-tests in r?

How you can create a table in r without external file?

What is transpose?

116

What are the data structures in r that is used to perform statistical analyses and create graphs?

How can you simulate noise model using r?

What are the different components of grammar of graphics?

What is correlation? How would you measure correlation in r?

How can you create a pca model in r?

111

What is principal component analysis?

How would you find the number of missing values in a dataset and remove all of them?

Give examples of “select” and “filter” functions from “dplyr” package.

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

How would you rename the columns of a dataframe?

Un-Answered Questions { R Programming }

how would you build a scatter-plot using plotly?

What is the difference between library() and require() functions in r language?

What is the main difference between an Array and a matrix?

What is vectorization in r?

What does the term 'dreaded for loop' means?

What is readline() in r?

102

What is data import in r language?

How can you debug and test r programming code?

Name some functions available in “dplyr” package.

List out some of the function that R provides?

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

What are useful s3 method functions?

100

Give some examples of the functions in stringr.

Name various sectors that are using R?

111

What is Predictive Analysis in R?

102

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