Table 1.

Model fits for illuminance-induced phase changes

ModelFormulaParameter EstimatesAdjusted R2AICRSE
LogEmbedded ImageEmbedded Image0.6981.751.81
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3-Parameter logisticEmbedded ImageEmbedded Image0.7764.321.39
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4-Parameter logisticEmbedded ImageEmbedded Image0.7665.841.41
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PowerEmbedded ImageEmbedded Image0.58112.22.52
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Cube rootEmbedded ImageEmbedded Image0.57114.22.55
  • Model fits to phase shifts in response to 3 consecutive episodes of experimental light exposure. See materials and methods for description of the models and statistics. Parameters are shown with the SD of the fit. AIC, Akaike‚Äôs information criterion; RSE, residual square error.