average {<xray-average-statement>} end

<xray-average-statement> :==

  from=<real-space-object>
  --{Real space object to be averaged. This will be overwritten by the
     averaged real space object.}
  group {<xray-average-group-statement>} end
  --{Define a averaging group. The first group is the reference. Subsequent
     group definitions specify the transformation that superimposes
     group 1 on that group.}
  manipulate {<xray-average-manipulate-statement>} end
  --{Rotate and translate real space objects.}
  ?
  --{Print information about current status.}