GrowthData2: Hypothetical growth data for testing seasonal age models.

In FSA: Simple Fisheries Stock Assessment Methods

Hypothetical growth data for testing seasonal age models.

Description

Hypothetical lengths at seasonal ages. These data are useful for testing growth related functions (e.g., findGrowthStarts) as they were generated from known growth functions (e.g., von Bertalanffy) with some random error and are, thus, “as good as it gets” for testing.

Format

A data frame of 126 observations on the following 2 variables:

age

Ages with decimals representing a fraction of a year

tlS

Total length simulated from a the “Somers” parameterization of the von Bertalanffy growth function with Linf=450, K=0.3, t0=-0.5, C=0.9, and ts=0.1

Topic(s)

• Growth

• von Bertalanffy

See Also

GrowthData1, GrowthData2, and findGrowthStarts

Examples

str(GrowthData2)
head(GrowthData2)
plot(tlS~age,data=GrowthData2)

FSA documentation built on June 8, 2025, 11:56 a.m.