The Quiz is about MCQs Data Visualization in R Programming Language. There are 20 multiple-choice questions covering different topics related to R Language Programming. Let us start with the MCQs Data Visualization in R Language now.
Online Multiple Choice Questions about Data Visualization in R Programming Language
Online MCQs Data Visualization in R Language
- Which function in ggplot adds a title to the plot?
- Which function is used to specify appropriate names for both axes in a plot?
- Which R statement creates a chart object based on the data frame “salesdata”, but allows you to vary the aesthetics from one layer to another?
- The qplot() function has no defaults, giving you more control over the output.
- Which R packages will this course use to create data visualizations?
- Which chart is a type of part of the whole chart?
- Which ggplot2 function can create a complete plot given the data, mappings, and geom as parameters?
- Which of the following statements about histograms is true?
- A pie chart is the same as a —————– in polar coordinates.
- Which parameter of the qplot() function changes the border color of the bars in a bar chart to blue?
- How can you improve the smoothness of a histogram?
- What step must you take before you can add the coord_polar() function to ggplot() to create a pie chart?
- In a scatter plot, what is the best way to change the color of the points based on a categorical variable?
- Which plot type helps you visualize time series data?
- Which functions can you use to change the title of a plot?
- What can you add to a plot if you want to emphasize important elements, such as outliers or spikes in your data?
- You want to divide a plot into subplots based on a categorical variable called “quarters”. Which function should you add to ggplot() to do this?
- What information do you need to provide to create a visualization using the Leaflet library?
- You added text labels to the data points on your plot, but now the plot looks messy because there are so many of them. What should you do?
- If you do not specify a theme when creating a plot with ggplot2, which theme does it use by default?