Exercise

Visualize popular terms with bar plots

Bar plot is a simple yet popular tool used in data visualization.

It quickly helps summarize categories and their values in a visual form.

In this exercise, you will create bar plots for the popular terms appearing in a text corpus.

The refined text corpus that you created for "telemedicine" has been pre-loaded as corp_refined.

The libraries qdap and ggplot2 have been pre-loaded for this exercise.

Instructions 1/2

undefined XP
  • 1
    • Extract the term frequency for the top 10 words.
    • Find terms with a frequency of more than 60.
    • Create a bar plot.
  • 2
    • Extract the term frequency for the top 25 words.
    • Find terms with a frequency of more than 50.
    • Create a bar plot.