The false alarm probability threshold p0 value will
adjust the number of peaks.
The effectiveBandWidth describes the coverage of processed
frequencies by the spec.lomb function. If the ratio to
averageSampling is almost 2, then the Nyquist criterion can
be assumed to be fullfilled. If the ratio is much less than 2
then only a fraction of information is analysed.
The minFreqStep is an estimate of the minimum frequency
step determined from the Lomb-Object.
Average sampling is calculated from the median distance between
two spatial points.
The possible frequency resolution originates also from the spatial
(temporal) input data by 1/(diff(range(x))), if x is
the spatial (temporal) coordinate.