This block is an experimentation of how to decompose a timeline thanks to an Fast Fourier Transform (FFT) algorithm.
Usages :
- in the top graph, Drag & Drop points to update the timeline, or use the shortcuts below the graph
Notes:
I’ve done other bl.ocks dealing with timeline analyses:
- another block highlights how important detrending is when trying to detect seasonality
- another block experiments seasonality detection
- another block experiments autocorrelation
- another block experiments time series correlation
- another block deals with the impact of seasonality when computing the trend of a timeline
Acknowledgments: