title: What's the difference between col and color in ggplot
body: <p>I just started learning R ggplot on Datacamp and it seems that <em>aes(col=...</em> and <em>aes(color =...</em> can be used interchangeably as they always give the same plots. Is there any difference between col and color??</p>
  <p><a href="https://i.stack.imgur.com/mHeA5.png" rel="nofollow noreferrer">with color</a></p>
  <p><a href="https://i.stack.imgur.com/rH1o6.png" rel="nofollow noreferrer">with col</a></p>