negativeExponential: Negative exponential growth model

In growthmodels: Nonlinear Growth Models

Negative exponential growth model

Description

Computes the negative exponential growth model

y(t) = \alpha ( 1 - exp(-k t))

Usage

negativeExponential(t, alpha, k)

negativeExponential.inverse(x, alpha, k)

Arguments

t	time
alpha	upper asymptote
k	growth rate
x	size

Author(s)

Daniel Rodriguez

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 <- negativeExponential(0:10, 1, 0.3)

# Calculate inverse function
time <- negativeExponential.inverse(growth, 10, 0.3)

growthmodels documentation built on May 31, 2023, 8:14 p.m.