Convert a matrix of natural mortality values into inputs for Stock Synthesis — SSmakeMmatrix • r4ss

Inspired by Valerio Bartolino and North Sea herring

Usage

SSmakeMmatrix(
  mat,
  startyr,
  outfile = NULL,
  overwrite = FALSE,
  yrs.in.columns = TRUE
)

Arguments

mat: a matrix of natural mortality by year and age, starting with age 0
startyr: the first year of the natural mortality values (no missing years)
outfile: optional file to which the results will be written
overwrite: if 'outfile' is provided and exists, option to overwrite or not
yrs.in.columns: an indicator of whether the matrix has years in columns or rows

Value

Prints inputs with option to write to chosen file

Author

Ian Taylor