Related InterviewSolutions

• legendTest
• legendTest <- ggplot(data=PlantGrowth, aes(x=group, y=weight, fill=group)) + geom_boxplot()
• library(ggplot2)
• Please consider built-in “PlantGrowth” dataset in R. Goal is to remove the legend which is shown in the box plot below (legend for a group with 3 values). Select all correct options that can be used to remove the legend in the boxplot.
• What is chartjunk? Explain three common types of chartjunk.
• What type of charts are to be considered when we are trying to demonstrate “relationship” between variables/parameters?
• Can plots be exported as image files or other file formats in R? Explain briefly.
• What is a time series plot? Explain using an example.
• When will you use a histogram and when will you use a bar chart in R? Explain with an example by leveraging R package.
• What is a scatter plot? Explain with an example of how to create one scatter plot using R libraries.