Vidyalelo
R Programming · all questions

Data Visualization with ggplot2
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

172

Questions

5/9

Page

Pick an option on a question to see the right answer and solution.

. . . . . . . . finds K best paths in a given graph.

Select an option to see the answer and solution.

. . . . . . . . is a package for parsing, applying, and manipulating data cleaning rules

Select an option to see the answer and solution.

. . . . . . . . performs class prediction based on microarray data and clinical parameters

Select an option to see the answer and solution.

Which of the following package provide namespace management functions not yet present in base R?

Select an option to see the answer and solution.

Which of the following is used to analyze paleontological time-series?

Select an option to see the answer and solution.

. . . . . . . . is used for the analysis of air pollution data.

Select an option to see the answer and solution.

Which of the following package contains functions for reading and displaying satellite data for oceanographic applications with R?

Select an option to see the answer and solution.

. . . . . . . . is used for Visualisation, verification and calibration of ternary probabilistic forecasts.

Select an option to see the answer and solution.

. . . . . . . . uniforms and customizes plots of packages ggplot2, graphics and lattice.

Select an option to see the answer and solution.

What will be the output of the following R code?
install.packages(c("devtools", "roxygen2"))

Select an option to see the answer and solution.

Which of the following is the formal requirement?

Select an option to see the answer and solution.

To start with the new package in RStudio, double-click the pkgname.Rproj file that . . . . . . . .

Select an option to see the answer and solution.

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.

Select an option to see the answer and solution.

An .Rproj file is a . . . . . . . . file.

Select an option to see the answer and solution.

A bundled package is a package that's been compressed into a . . . . . . . . file.

Select an option to see the answer and solution.

. . . . . . . . are built in R so that you get HTML.

Select an option to see the answer and solution.

Which of the following package has temporary files?

Select an option to see the answer and solution.

files listed in the Rbuildignore are not included in the . . . . . . . .

Select an option to see the answer and solution.

.Rbuildignore prevents files in the . . . . . . . . package from appearing in the bundled package.

Select an option to see the answer and solution.

. . . . . . . . is not useful when developing a package since you have to install the package first.

Select an option to see the answer and solution.