title: R: how to re-scale plots?
body: <p>I'm using R with R-Studio. How can I re-scale the axis of a plot I made using <code>plot(...)</code>? The only option I see at this point is to Zoom in, which pretty much displays the dame graph on the entire screen..</p>
  
  <p>EDIT:
  I will explain better the use case I'm looking for:
  Assume I'm plotting the next graph: <code>plot(c(1,2),c(3,4))</code>. This will yield the following graph:
  <a href="https://i.stack.imgur.com/AJ6g2.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/AJ6g2.png" alt="Sample plot"></a>
  Then I want to add another point: <code>points(1,5)</code>. Since the new point is beyond the axis boundaries, I cannot see it. How can I re-scale the axis so I can see all the points (without replotting everything)?</p>