How would you customize the appearance of an R bar chart, including changing colors, labels, and legend?

  • By using the col parameter to change bar colors
  • By using the names.arg parameter to add labels to the bars
  • By using the legend() function
  • All of the above
To customize the appearance of an R bar chart, you can use the col parameter to change the colors of the bars, the names.arg parameter to add labels to the bars, and the legend() function to add a legend. These options allow you to customize the colors, labels, and legend to suit your visualization needs.
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