Note that this reference documentation is identical to the help that is displayed in MATLAB when you type “help ft_freqbaseline”.

  FT_FREQBASELINE performs baseline normalization for time-frequency data
 
  Use as
     [freq] = ft_freqbaseline(cfg, freq)
  where the freq data comes from FT_FREQANALYSIS and the configuration
  should contain
    cfg.baseline     = [begin end] (default = 'no')
    cfg.baselinetype = 'absolute', 'relative', 'relchange', 'normchange' or 'db' (default = 'absolute')
    cfg.parameter    = field for which to apply baseline normalization, or
                       cell array of strings to specify multiple fields to normalize
                       (default = 'powspctrm')
 
  See also FT_FREQANALYSIS, FT_TIMELOCKBASELINE, FT_FREQCOMPARISON,
  FT_FREQGRANDAVERAGE