initiate | R Documentation |
Abundances at age for a population at virgin conditions at age. An FLBiol
object is initiated by providing a target total biomass (B0
) and a value
for the stock-recruit steepness (s
). The object requires slots to be
already filled up for the mean weight-at-age (wt
), natural mortality
(m
), time of spawning (spwn
) and maturity at age (mat
).
initiate(biol, B0, h = 0.75)
biol |
An |
B0 |
Initial or virgin biomass. |
An updated FLBiol
with abundances set in teh first year to match
the requested biomas.
data(ple4.biol)
initiate(ple4.biol, B0=450000)
#
initiate(propagate(ple4.biol, 100), B0=runif(100, 3e5, 5e5))
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