You do not need Spectral Analysis to determine the Dominant Cycles at work within Price Action Moreover these cycles work for you ! They are composite Cycles :what you see is the end-product of ALL operating Cycles , their amplitude is the SUM (plus/minus, bearish/bullish) of the Amplitudes of ALL operating Cycles within Price action
%% Some of it is pretty basic but still good. Ever seen the expression= ''its hard to stop a train??'' Its hard to stop a good trend also..............................................................................................NOT a prediction.