title: Move core plot x axis to last point
body: <p>My core plot graph in my iPhone app is drawing nicely. However, one thing I can't seem to figure out. How can I get the graph to scroll to the end of its x axis after the view loads, rather than starting at the origin? I would like the last data point upon the x axis to be visible when the graph appears. How?</p>
  
  <p>I saw the plotSpace:willDisplaceBy: delegate method, which is "close" to what I need, but I need to be able to tell the graph to displace itself to the end of its x axis when its view loads. I haven't found any relevant example code for core plot to do this.</p>