text: from pauxy.systems.hubbard import get_strip
  
  def correlation_function(filename, name, iy):
      data = h5py.File(filename, 'r')
      md = json.loads(data['metadata'][:][0])
      nx = int(md['system']['nx'])
      ny = int(md['system']['ny'])
      output = data[name+'/correlation'][:]
      columns = ['hole', 'hole_err', 'spin', 'spin_err']
      h, herr = get_strip(output[0], output[1], iy[0], nx, ny)
      s, serr = get_strip(output[2], output[3], iy[0], nx, ny, True)
      results = pd.DataFrame({'hole': h, 'hole_err': herr,
                              'spin': s, 'spin_err': serr},
                             columns=columns)
  
      return results
  
  def analysed_energies(filename, name):
      data = h5py.File(filename, 'r')
      md = json.loads(data['metadata'][:][0])
      dt = md['qmc']['dt']
      output = data[name+'/estimates'][:]
      columns = data[name+'/headers'][:]
      results = pd.DataFrame(output, columns=columns)
  
      return results
  