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?

112

What is inheritance in s3 class?

103

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?

103

Explain the concept of principal component analysis?

What are r matrices and r matrices functions?

Un-Answered Questions { R Programming }

How would you measure correlation in r?

Mention what does not ‘R’ language do?

697

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

101

Why the cv.im()?

What are Ensemble Models in R?

119

What is the use of sample and subset functions in R programming language?

What is power analysis ?

What are various ways to write la oop in r?

What is the apply() family in r?

Write the syntax to set the path for a current working directory in r environment?

117

Explain r graphics devices?

How will you create scatterplot matrices in r language?

What does not ‘r’ language do?

X is the vector c(5,9.2,3,8.51,na), what is the output of mean(x)?

1142

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

495

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