convert_plot_size_axis: Convert plotting data from weight to length

In mizer: Dynamic Multi-Species Size Spectrum Modelling

Convert plotting data from weight to length

Description

When size_axis = "l", adds a length column l computed from the weight column w using the weight-length relationship of each line, see plot_length_params(). Rows with no such relationship are dropped. For size_axis = "w" the data is returned unchanged.

Usage

convert_plot_size_axis(
  plot_dat,
  params,
  size_axis,
  species_col = "Species",
  drop_w = TRUE
)

Arguments

plot_dat	A data frame of plotting data with a w column and a species column.
params	A MizerParams object providing the weight-length parameters.
size_axis	Either "w" (weight) or "l" (length).
species_col	Name of the column identifying the species. Default is "Species".
drop_w	If TRUE (default), the w column is dropped once l has been computed.

Value

The plotting data, with a length column l added (and w optionally dropped) when size_axis = "l".

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