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Appendix A. Model Specification
A.D. Letaw edited this page Sep 6, 2017
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Model Variables
Variable | Symbol | Type | Description |
---|---|---|---|
styr | t | int | start year |
endyr | t | int | end year |
tstep | NA | double | time step |
ndata | int | number of data groups | |
nsex | s | int | number of sexes |
nshell | v | int | number of shell conditions |
nmature | m | int | number of maturity states |
nclass | l | int | number of size classes in the model |
ncol | int | number of columns in N-matrix |
The numbers-at-size in the first year are initialized using an initial mean recruitment R, natural mortality, the size transition matrix, and a vector of deviations for each size class that represents recruitment variability prior to the initial start year of the model.
Use this web page to develop equations http://www.codecogs.com/latex/eqneditor.php
Gmacs: A Stock Assessment Modeling Framework