title: aligning inset plots in gnuplot
body: <p>How do I align an inset plot in multiplot so that the right and top frames of both plots coincide so that I get something like in this plot:
  <a href="https://i.stack.imgur.com/jaumq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jaumq.png" alt="enter image description here"></a></p>
  
  <p>I tried to read the documentation on coordinates but I do not understand that at all and thus I cannot properly set origin and size.</p>