Description Usage Arguments Value Author(s)
View source: R/create_lh_list.R
create_lh_list
Creates list of life history information
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | create_lh_list(
vbk,
linf,
lwa,
lwb,
S50,
M50,
S95 = NULL,
M95 = NULL,
Sslope = NULL,
Mslope = NULL,
selex_input = "length",
maturity_input = "length",
selex_type = "logistic",
dome_sd = NULL,
binwidth = 1,
t0 = -0.01,
CVlen = 0.1,
SigmaC = 0.001,
SigmaI = 0.001,
SigmaR = 0.737,
SigmaF = 0.2,
R0 = 1,
h = 1,
qcoef = 1e-05,
M = NULL,
AgeMax = NULL,
Fequil = 0.5,
Frate = 0.2,
start_ages = 0,
rho = 0,
theta = 1,
nseasons = 1,
nfleets = 1
)
|
vbk |
von Bertalanffy k Brody growth coefficient |
linf |
von Bertalanffy Linf asymptotic length |
lwa |
length-weight scaling parameter |
lwb |
length-weight allometric parameter |
S50 |
starting value for age or length at 50 percent selectivity (will be estimated in LIME method) – can be vector for multiple fleets |
M50 |
age or length at 50 percent maturity |
S95 |
default=NULL for one-parameter logistic model; starting value for age or length at 95 percent selectivity – can be vector for multiple fleets |
M95 |
default=NULL for one-parameter logistic model; age or length at 50 percent maturity |
Sslope |
default=NULL, option to specify slope of logistic curve for length-at-selectivity – can be vector for multiple fleets |
Mslope |
default=NULL option to specify slope of logistic curve for length-at-maturity |
selex_input |
specify whether argument S50 is an age or a length (default length) |
maturity_input |
specify whether argument M50 is an age or a length (default length) |
selex_type |
default="logistic" for 1-parameter logistic selex, alternate="dome" for dome-shaped selectivity and must specify dome-params LV and RV. – can be vector for multiple fleets |
dome_sd |
standard deviation of normal distribution to the right side of the fully selected age/length – can be vector for multiple fleets |
binwidth |
width of length bins (default = 1) |
t0 |
theoretical age at length=0 (default = -0.01); avoid fixing to zero due to some issues with the first age/length bin |
CVlen |
CV of the growth curve (default = 0.1) |
SigmaC |
standard deviation - observation error of catch data (default = 0.2) |
SigmaI |
standard deviation - observation error of index data (default = 0.2) |
SigmaR |
standard deviation - process error for recruitment time series (default = 0.6 – starting value, will be estimated) |
SigmaF |
standard deviation - process error for fishing mortality time series (default = 0.3) – can be vector for multiple fleets |
R0 |
equilibrium recruitment (default = 1); when no information on scale is available, will estimate relative deviations around equilibrium 1 |
h |
steepness parameter (default = 1) |
qcoef |
starting value for catchability coefficient (when index data is available, default = 1e-5) – can be vector for multiple fleets |
M |
value for natural mortality if there has been a study (default = NULL, calculated internally from vbk) |
AgeMax |
option to specify maximum age; default=NULL will calculate as the age at which 1 percent of individuals are left in the unfished condition |
Fequil |
equilibrium fishing mortality rate (used for simulation; default=0.2) – can be vector for multiple fleets |
Frate |
parameter used to simulate fishing moratality time series (default=NULL) – can be vector for multiple fleets |
start_ages |
age to start (either 0 or 1; default = 0) |
rho |
first-order autocorrelation in recruitment residuals parameter, default=0 (recruitment not autocorrelated) |
theta |
dirichlet-multinomial parameter related to effective sample size. default to 10, will not be used if length frequency distribution LFdist is set to multinomial (0). Only used if distribution is dirichlet-multinomial (LFdist=1) |
nseasons |
specify number of sub-time periods per year; default=1 (instantaneous sampling) |
nfleets |
specify number of fleets - fleet-specific parameters can be length nfleets, or shared by specifying only one number |
List, a tagged list of life history traits
M.B. Rudd
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.