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

R Programming Interview Questions

Questions Answers Views Company eMail

In r how missing values are represented?

Mention how you can produce co-relations and covariances?

What are r data types?

117

What is inheritance in s3 class?

109

What is apply() function in r?

Explain how to repeat vectors in r?

What packages are used for data mining in r?

What does tcp/ip work?

What is s3 in r?

What is s4?

Name all control statements present in r?

What is function definition?

What is the use of lattice package?

109

Explain the concept of principal component analysis?

What are r matrices and r matrices functions?

Un-Answered Questions { R Programming }

What is readline() in r?

106

How would you measure correlation in r?

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

In R how you can import Data?

101

What is transpose?

124

How would you do a left and right join in r?

100

How to use sapply in r?

What is a variable assignment?

108

Explain in brief preliminaries of C/C++?

111

What is a factor? How would you create a factor in r?

Explain how R programming applied to the real world?

105

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

Explain the significance of transpose in r language

176

How will you combine multiple different string like “data”, “science”, “in” ,“r”, “programming” as a single string “data_science_in_r_programmming” ?

134

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

113

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