title: How do I lengthen edges in an igraph network plot (layout=fruchterman.reingold)?
body: <p>Trying to do a network plot in R.
  How do I lengthen edges in a network graph using IGraph?</p>
  
  <p>I actually want to use the fruchterman-reingold layout.  Is there some way I can make that force-based algorithm "springier" so that my vertices are further apart?</p>
  
  <p>thanks.</p>