plot_diet: Build the diet-composition plot

In mizer: Dynamic Multi-Species Size Spectrum Modelling

Build the diet-composition plot

Description

Internal worker shared by the plotDiet() methods. It melts the diet array into a data frame, restricts to meaningful size ranges, converts to a length axis if requested and draws a stacked-area plot of prey proportions.

Usage

plot_diet(
  params,
  n,
  diet,
  species,
  log_x,
  log_y,
  wlim,
  llim,
  size_axis,
  return_data
)

Arguments

params	A MizerParams object.
n	Array of species abundances (species by size).
diet	Array of diet proportions (predator by size by prey).
species	The predator species to be plotted.
log_x, log_y	Logical flags for log10 axes.
wlim, llim	Numeric vectors of length two giving the weight and length limits.
size_axis	Either "w" (weight) or "l" (length).
return_data	If TRUE, return the plotting data frame instead of the plot.

Value

A mizer_plot (ggplot2) object, or the plotting data frame if return_data = TRUE.

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