R interview questions part 31
R interview questions part 31
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. ________ performs class prediction based on microarray data and clinical parameters
Correct Answer is : M2
2. Which of the following package provide namespace management functions not yet present in base R?
Correct Answer is : namespace
3. Which of the following is used to analyze paleontological time-series?
Correct Answer is : paleoTS
4. __________ is used for the analysis of air pollution data.
Correct Answer is : openair
5. Which of the following package contains functions for reading and displaying satellite data for oceanographic applications with R?
Correct Answer is : satin
6. ______ is used for Visualisation, verification and calibration of ternary probabilistic forecasts.
Correct Answer is : ternvis
7. _________ uniforms and customizes plots of packages ggplot2, graphics and lattice.
Correct Answer is : uniPlot
8. What is the output of the following code? install.packages(c("devtools", "roxygen2"))
Correct Answer is : Installs the given packages
9. Which of the following is the formal requirement?
Correct Answer is : Letters
10. To start with the new package in RStudio, double-click the pkgname.Rproj file that _______
Correct Answer is : Create()
11. If you have an existing package that doesn’t have an .Rproj file, you can use devtools for the use_rstudio(“_____/to/package”) to add it.
Correct Answer is : Path
12. An .Rproj file is a ____ file.
Correct Answer is : Text
13. A bundled package is a package that’s been compressed into a ______ file.
Correct Answer is : Single
14. ________ are built in R so that you get HTML.
Correct Answer is : Vignettes
15. Which of the following package has temporary files?
Correct Answer is : Source
16. files listed in the Rbuildignore are not included in the ______
Correct Answer is : bundle
17. .Rbuildignore prevents files in the ___________ package from appearing in the bundled package.
Correct Answer is : source
18. _______ is not useful when developing a package since you have to install the package first.
Correct Answer is : Library
19. Which function is used for seeing currently active libraries?
Correct Answer is : .libpaths()
20. Which function is used for loading packages?
Correct Answer is : Library
