[FieldTrip] Wavelet bandwidth on tutorial website

[Schmiedt, Joscha]

Hi,

The fieldtrip tutorial website on TFRs with wavelets (http://fieldtrip.fcdonders.nl/tutorial/timefrequencyanalysis#morlet_wavelets) states that "at a given frequency F is equal to F/width*2 (so, at 30 Hz and a width of 7, the spectral bandwidth is 30/7*2 = 8.6 Hz) while the wavelet duration is equal to width/F/pi (in this case, 7/30/pi = 0.074s = 74ms)”.

According to the help of ft_freqanalysis and the code of ft_specest_wavelet the spectral bandwidth (standard deviation in frequency domain) is F/width. Is the website outdated?

Best,
Joscha