title: Generating Indivdiual Dot Plot in R with Multipe Factors
body: <p>I'm trying to generate an individual dot plot with multiple factors in R that's similar to the one produced by minitab.</p>
  
  <p>I've been able to produce the individual dot plot in R but I can't figure out how to add grouping to the x-axis. For example I have a Color and a Type that I'd like to display on the x-axis, each Type has two colors and I'd like this put on the same graph but can't figure it out for a dot plot.  </p>
  
  <p>The result should look similar to this grouping but a dot plot instead and only have 1 graph, I'm just trying to illustrate the grouping.</p>
  
  <p><a href="http://ajpendo.physiology.org/content/280/5/E804/F6.small.gif" rel="nofollow">http://ajpendo.physiology.org/content/280/5/E804/F6.small.gif</a></p>
  
  <p>sorry can't post the image, too much of a noob to stack :)</p>
  
  <p>I've scoured the web but can't find much help.</p>
  
  <p>Any ideas? </p>