Get size range array

Helper function that returns an array (species x size) of boolean values indicating whether that size bin is within the size limits specified by the arguments.

get_size_range_array(
  params,
  min_w = min(params@w),
  max_w = max(params@w),
  min_l = NULL,
  max_l = NULL,
  ...
)

Arguments

params	MizerParams object
min_w	Smallest weight in size range. Defaults to smallest weight in the model.
max_w	Largest weight in size range. Defaults to largest weight in the model.
min_l	Smallest length in size range. If supplied, this takes precedence over min_w.
max_l	Largest length in size range. If supplied, this takes precedence over max_w.
...	Unused

Value

Boolean array (species x size)

Length to weight conversion

If `min_l` is specified there is no need to specify `min_w` and so on. However, if a length is specified (minimum or maximum) then it is necessary for the species parameter data.frame to include the parameters `a` and `b` that determine the relation between length \(l\) and weight \(w\) by $$w = a l^b.$$

It is possible to mix length and weight constraints, e.g. by supplying a minimum weight and a maximum length. The default values are the minimum and maximum weights of the spectrum, i.e. the full range of the size spectrum is used.