File Applications/SpinW/m_files/sw_omegasum.m

  removes degenerate and ghost magnon modes from spectrum
 
  spec = sw_omegasum(spec, 'Option1', Value1, ...)
 
  It removes the degenerate modes from the dispersion stored in
  spectra.omega and sorts omega according to the energy.
 
  The degenerate dispersion energies are substituted with NaN values. Be
  carefull, after this function sw_egrid() won't work properly on spectra.
 
  Options:
 
  tol       Tolerance, within two energies are considered equal. Default
            value is 1e-5.
  zeroint   The minimum intensity value, below the mode is dropped. Default
            value is zero (no modes are dropped due to weak intensity).
 
  See also SW.SPINWAVE, SW_EGRID.