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

  FT_REALTIME_POWERESTIMATE is an example realtime application for online
  power estimation. It should work both for EEG and MEG.
  Use as
  with the following configuration options    = cell-array, see FT_CHANNELSELECTION (default = 'all')
    cfg.foilim     = [Flow Fhigh] (default = [0 120])
    cfg.blocksize  = number, size of the blocks/chuncks that are processed (default = 1 second)
    cfg.bufferdata = whether to start on the 'first or 'last' data that is available (default = 'last')
  The source of the data is configured as
    cfg.dataset       = string
  or alternatively to obtain more low-level control as
    cfg.datafile      = string
    cfg.headerfile    = string
    cfg.eventfile     = string
    cfg.dataformat    = string, default is determined automatic
    cfg.headerformat  = string, default is determined automatic
    cfg.eventformat   = string, default is determined automatic
  To stop the realtime function, you have to press Ctrl-C