schnute: Schnute growth model

In growthmodels: Nonlinear Growth Models

Schnute growth model

Description

Computes the Schnute growth model

y(t) = \left[ r_0 + \beta exp(k t) \right]^m

Usage

schnute(t, r0, beta, k, m)

schnute.inverse(x, r0, beta, k, m)

Arguments

t	time
r0	reference value
beta	growth displacement
k	growth rate
m	slope of growth
x	size

Author(s)

Daniel Rodriguez

References

A. Khamiz, Z. Ismail, and A. T. Muhammad, "Nonlinear growth models for modeling oil palm yield growth," Journal of Mathematics and Statistics, vol. 1, no. 3, p. 225, 2005.

Examples

growth <- schnute(0:10, 10, 5, .5, .5)

# Calculate inverse function
time <- schnute.inverse(growth, 10, 5, .5, .5)

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