FieldTrip

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

  FT_FREQANALYSIS_TFR computes time-frequency representations of single-trial
  data using a convolution in the time-domain with Morlet's wavelets.
 
  Use as
    [freq] = ft_freqanalysis(cfg, data)
 
  The data should be organised in a structure as obtained from
  the FT_PREPROCESSING function. The configuration should be according to
    cfg.method        = method used for frequency or time-frequency decomposition
                        see FT_FREQANALYSIS for details
    cfg.foi           = vector 1 x numfoi, frequencies of interest
    cfg.waveletwidth  = 'width' of wavelets expressed in cycles (default = 7)
    cfg.channel       = Nx1 cell-array with selection of channels (default = 'all'),
                        see FT_CHANNELSELECTION for details
    cfg.downsample    = ratio for downsampling, which occurs after convolution (default = 1)
    cfg.trials        = 'all' or a selection given as a 1xN vector (default = 'all')
    cfg.keeptrials    = 'yes' or 'no', return individual trials or average (default = 'no')
 
  See also FT_FREQANALYSIS