[FieldTrip] ft_realtime_average

[Wan Amirah W Azlan]

Hi,
Can anyone help me to explain what does the 'average' at the line if isempty (average) in ft_realtime_average refer to?Because when I'm using the function ft_realtime_average, an error of 'Undefined variable of average' is shown.I'm doing the realtime processing. 
Thank you. Regards,Wan Amirah binti W Azlan,Postgraduate student,Universiti Teknikal Malaysia Melaka,Hang Tuah Jaya, 76100 Durian Tunggal,  Melaka, Malaysia.Tel (H/P): +60193702134
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