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Estimates skewness of a thermal performance curve

Usage

get_skewness(model)

Arguments

model

nls model object that contains a model of a thermal performance curve

Value

Numeric estimate of skewness

Details

Skewness is calculated from the values of activation energy (e) and deactivation energy (eh) as: skewness = e - eh. A negative skewness indicates the TPC is left skewed, the drop after the optimum is steeper than the rise up to the optimum. A positive skewness means that the TPC is right skewed and a value of 0 would mean the curve is symmetrical around the optimum.