title: How to plot a single column of categories as a pie chart in R
body: <p>I imported a CSV file with a single column of data, that has categories like the following: </p>
  
  <pre><code>car
  truck
  suv
  suv
  truck
  suv
  car
  car
  car
  truck
  suv
  </code></pre>
  
  <p>The data does not have any associated values. How can I plot this data in a pie chart? </p>