Multiplies the abundances of all or of selected species by given factors and then retunes the reproductive efficiencies accordingly.

rescaleAbundance(params, factor)



A mizer params object


The factor by which the abundance of each species is multiplied. This can be specified in two ways:

  • A named numeric vector where the name indicates the species and the value gives the factor for that species. Only the named species are affected.

  • A number that gives the factor for all foreground species.


An object of type MizerParams


Does not run the system to steady state. For that you should call steady() explicitly afterwards.