title: How to put more information on my R Pie Chart ?
body: <p>I have the following simple R code.</p>
  
  <pre><code>vect &lt;- c(a = 4, b = 7, c = 5)
  pie(vect, labels = c("A", "B", "C"), col = c("#999999", "#6F6F6F", "#000000"))
  </code></pre>
  
  <p>that print the following pie chart </p>
  
  <p><img src="https://i.stack.imgur.com/IJ0lx.png" alt="enter image description here"></p>
  
  <p>How do I modify the above code to print more detail on my pie chart, so that it look like this other one ?</p>
  
  <p><img src="https://i.stack.imgur.com/vFWer.png" alt="enter image description here"></p>
  
  <p>Thanks for any reply !</p>