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Cosinor
The Cosinor analysis uses the least squares method to fit a sine wave to a time
series. Cosinor analysis is often used in the analysis of biologic time series that
demonstrate predictible rhythms.
The Cosinor analysis was developed based on the Cosinor Matlab function, that
can be found at the following link:
http://www.mathworks.com/matlabcentral/fileexchange/20329-
cosinoranalysis/content/html/cosinor.html
The Matlab function follows the cosinor analysis of a time series as outlined by
Nelson et al. "Methods for Cosinor-Rhythmometry" Chronobiologica, 1979.
Nelson, W., et al. "Methods for cosinor-rhythmometry." Chronobiologia 6.4
(1979): 305.
More information about the cosinor method can be found in the “Cosinor-based
rhythmometry” review:
Cornelissen, Germaine. "Cosinor-based rhythmometry." Theoretical Biology and
Medical Modelling 11.1 (2014): 1.
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