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- Question:
- How many cyclic components?
- Dominant cyclic frequencies?
- Definition:
- Vertical Axis: Variance (Power)
- Horizontal Axis: Frequency (cycles per observation)
- Interpretation/Conclusion:
- Only 1 dominant frequency
- Dominant frequency near .3 cycles/observation
- NIST/SEMATECH Handbook Chapter:
- 1. Process/Product Exploration
- Reference:
- Jenkins and Watts (1968), Spectral Applications
and Its Applications, Holden-Day.
- Bloomfield (1976), Fourier Analysis of Time
Series, John Wiley and Sons.
- Granger and Jatanaka (1964), Spectral Analysis
of Economic Time Series, Princeton University
Press.
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