def split(min,max)
      step=(max-min).quo(domain().size)
      @r=Rubyvis.range(min+step.quo(2),max,step)
      self
    end
def split(min,max)
      step=(max-min).quo(domain().size)
      @r=Rubyvis.range(min+step.quo(2),max,step)
      self
    end
Sets the range from the given continuous interval. The interval [<i>
 min</i>, <i>max</i>] is subdivided into <i>n</i> equispaced points,
 where <i>n</i> is the number of (unique) values in the domain. The first
 and last point are offset from the edge of the range by half the distance
 between points.

 <p>This method must be called <i>after</i> the domain is set.