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Figure 9 | Theoretical Biology and Medical Modelling

Figure 9

From: Cosinor-based rhythmometry

Figure 9

Nonlinear serial section. The period of the about 11-year cycle in solar activity is estimated by nonlinear least squares applied to yearly Wolf numbers analyzed in a 35-year interval progressively moved by 5 years throughout the time series. The solar activity cycle has a period that can vary from about 9 to 15 years, shown here with its 95% confidence interval and compared with the official cycle length. © Halberg Chronobiology Center.

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Theoretical Biology and Medical Modelling

ISSN: 1742-4682