new_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'))
  
subject: add example for phase cycling labels