model_observation: The modelled counterpart of an observation

In mizer: Dynamic Multi-Species Size Spectrum Modelling

The modelled counterpart of an observation

Description

Internal helper for the calibration and matching functions. Integrates the initial abundance of each species over the sizes that the observation covers and returns the total biomass in grams for to = "biomass" or the total number of individuals for to = "number". The ⁠<to>_cutoff⁠ species parameter sets the smallest size counted for each species; where it is missing the whole size range of the species is counted.

Usage

model_observation(params, to = c("biomass", "number"))

Arguments

params	A MizerParams object.
to	The type of observation, either "biomass" or "number".

Details

The integral is done by sizeIntegral(), so it follows the model's quadrature scheme and lets the bin straddling the cutoff contribute only the part of it that lies above the cutoff.

Value

A named vector with one value for each species.

mizer documentation built on Aug. 31, 2026, 5:08 p.m.