nmfs-ost/ss3-doc

Update text about density dependence

iantaylor-NOAA opened this issue · 2 comments

Density dependent links for parameters are now available so this text should be updated:
"In the future, the summary biomass in the previous year will be mirrored into environmental column -2 and that the age zero recruitment deviation into environmental column -1. Once so mirrored, they may enable density-dependent effects on model parameters."
From here: https://github.com/nmfs-stock-synthesis/doc/blob/70751eee3ca638ed5309948954208e04969e7682/13output.tex#L352.

@Rick-Methot-NOAA, can we just take out the future part and change to "The summary biomass in the previous year is mirrored..." or is there more that should be added?

[edit: typo corrected "is", not "is be"]

It is not from the previous year.

Density-dependence can be used by linking to population quantities that have already been calculated at the start of the year. These include summary biomass, spawning biomass, and recruitment deviation. These three quantities are mapped into the -1, -2, and -3 columns of the environmental data matrix where they can be used as if there were environmental data input.

@iantaylor-NOAA Thank you for identifying this and thank you @Rick-Methot-NOAA for the revised text suggestion.