Is there a package that decomposes a series into trend and multiple cycles?
stl is great for one cycle but I would like to find the possibility of other cycles.
Thanks for your help.
Is there a package that decomposes a series into trend and multiple cycles? stl
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You could look at doing a spectral analysis of the series using the fast Fourier transform or a wavelet decomposition. There are plenty of options suggested in the Decomposition and Filtering section of the CRAN Task View on Time Series.