growthmodels: mitcherlich – R documentation

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mitcherlich

Mitcherlich growth model

Description

Computes the Mitcherlich growth model

y(t) = α - β * k^t

Usage

mitcherlich(t, alpha, beta, k)

  mitcherlich.inverse(x, alpha, beta, k)

Arguments

`t`	time
`x`	size
`alpha`	upper asymptote
`beta`	growth range
`k`	growth rate

References

D. Fekedulegn, M. Mac Siurtain, and J. Colbert, "Parameter estimation of nonlinear growth models in forestry," Silva Fennica, vol. 33, no. 4, pp. 327-336, 1999.

Examples

growth <- mitcherlich(0:10, 10, 0.5, 0.3)
# Calculate inverse function
time <- mitcherlich.inverse(growth, 10, 0.5, 0.3)

growthmodels

Nonlinear Growth Models

v1.2.0

GPL-3

Authors

Daniel Rodriguez Perez

Initial release

2013-11-23