old_contents: from pyspecdata import *
  a = nddata(r_[0:90],[3,3,10],['ph1','ph2','t']).setaxis('ph1','#').setaxis('ph2','#').setaxis('t','#').set_units('t','s')
  a.ft(['ph1','ph2','t'])
  print(a.unitify_axis('ph1'))
  print(a.unitify_axis('ph2'))
  print(a.unitify_axis('t'))
  
new_contents: """
  phase cycling labels
  ====================
  
  demonstrate automatic labeling of phase cycling (coherence) axes
  """
  from pyspecdata import *
  a = nddata(r_[0:90],[3,3,10],['ph1','ph2','t']).setaxis('ph1','#').setaxis('ph2','#').setaxis('t','#').set_units('t','s')
  a.ft(['ph1','ph2','t'])
  print(a.unitify_axis('ph1'))
  print(a.unitify_axis('ph2'))
  print(a.unitify_axis('t'))
  
subject: make sure I can build docs