The lomolino SAR regression model

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Description

S == c / 1 + z^log(f/A)

Usage

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Format

The format is: List of 8 $ name : "Lomolino" $ formula : expression(S == over(c, 1 + z^log(over(f, A)))) $ paramnumber: 3 $ paramnames : "c" "z" "f" $ parLim : "Rplus" "Rplus" "Rplus" $ fun : model function $ rssfun : Residual Sum of Squares function $ init : initial values calculation $ form : a formula object for further calculations

Details

The lomolino model is sigmoid asymptotic. Parameter c is the upper asymptote. For further details and documentation please see the online documentation at http://mmsar.r-forge.r-project.org/

Source

Lomolino, M.V. (2000), Tjørve (2003).

References

Lomolino, M.V. (2000) Ecology’s most general, yet protean pattern: the species–area relationship. Journal of Biogeography, 27, 17–26.

Tjørve, E. (2003) Shapes and functions of species–area curves: a review of possible models. Journal of Biogeography, 30, 827–835.

Examples

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#loading the lomolino model object before using it
data(lomolino)