get_buffer: Buffer calculation for West Coast groundish assessments

In nwfsc-assess/PEPtools: Tools for Stock Assessments used by the Population Ecology Program

Buffer calculation for West Coast groundish assessments

Description

Buffer calculation for West Coast groundish assessments

Usage

get_buffer(years, sigma, pstar, verbose = TRUE)

Arguments

years	Years to generate buffer values. The first year should align with the year of the assessment. Input should be vector of years to calulculate West Coast groundfish buffers for (e.g., years = 2021:2032).
sigma	The initial sigma value to use based on West Coast groundfish assessment categories (cat 1 = 0.50, cat 2 = 1.0, cat 3 = 2.0). For categories 1 and 2 the sigma will be time-varying.
pstar	The management risk tolerance determined by the PFMC (i.e., 0.45, 0.40).
verbose	A logical that specifies if you want to print messages and warnings to the console. The default is TRUE.

Details

Buffer calculation for U.S. West Coast Groundfish Stocks Applies the time-varying sigma approach based on the 2019 approach described in: Wetzel, C.R. and O.S. Hamel, 2023. Applying a probability harvest control rule to account for increased uncertainty in setting precautionary harvest limits from past stock assessments. Fisheries Research 262: 106659.

Author(s)

written by Chantel Wetzel

Examples

get_buffer(years = 2011:2032, sigma = 1.0, pstar = 0.4)

nwfsc-assess/PEPtools documentation built on Oct. 25, 2024, 3:59 a.m.