R interview questions part 30
R interview questions part 30
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. ________ provides needed string operators in R.
Correct Answer is : stringr
2. Which of the following syntax is used to install forecast package ?
Correct Answer is : install.packages(“forecast”)
3. Which of the following is similar to Moment.js ?
Correct Answer is : lubridate
4. __________ modifies geom/stat aesthetic defaults for future plots
Correct Answer is : translate_qplot_defaults
5. Which of the following is a library for statistical quality control.
Correct Answer is : qcc
6. ______ specializes in converting data from wide to long format.
Correct Answer is : reshape2
7. ._________ is used to convert wide data to long data.
Correct Answer is : melt
8. ______ is used to view all packages installed.
Correct Answer is : library()
9. ______ is used to get library location in R.
Correct Answer is : .libPaths()
10. ________ is used to view packages currently loaded.
Correct Answer is : search()
11. ________ contains tools for Approximate Bayesian Computation (ABC).
Correct Answer is : abc
12. Which of the following package combine multi-dimensional arrays ?
Correct Answer is : abind
13. Which of the following contains functions for processing uniaxial minute-to-minute accelerometer data ?
Correct Answer is : accelerometry
14. __________ is used for selecting regression transformations
Correct Answer is : avas()
15. Which of the following is an R package for the exploratory analysis of genetic and genomic data ?
Correct Answer is : adegenet
16. ______ specializes in functions for analytical Customer Relationship Management.
Correct Answer is : aCRM
17. ._________ searches for significant clusters in genetic data.
Correct Answer is : bayesclust
18. ______ Uses Grieg-Smith method on 2 dimensional spatial data
Correct Answer is : G.S.
19. ______ finds K best paths in a given graph.
Correct Answer is : kBestShortestPaths
20. ________ is a package for parsing, applying, and manipulating data cleaning rules
Correct Answer is : editrules
