put_size_class_on_prey: Put size classes on preys from observed length.
In MortenVinther/FishStomachs: Compilation of stomach contents data

put_size_class_on_prey

R Documentation

Put size classes on preys from observed length.

Description

Put size classes on preys

Usage

put_size_class_on_prey(stom, len_classes, too_small_to_other = TRUE)

Arguments

`stom`	stomach contents data of class STOMobs.
`len_classes`	Data frame with size class definitions. See `make_length_classes`. Size class will be added just for the species included in `len_classes`. If `length_classes` include sprecies='ALL' all species will get size class.
`too_small_to_other`	Convert small prey items into other food. Preys smaller than defined by control@min_prey_length are renamed into other food with unknown size if `too_small_to_other` is TRUE.

Details

This function adds a size group to each prey item based on the prey length (prey_l) if such exist, or based on the midpoint of the size range (prey_ll - prey_lu). Both approaches use an input definition of size groups, typically made by the function make_length_classes. The mean length of the predator (XXXXX) is added either copied from the variable prey_l or from the midpoint of the size range (prey_ll - prey_lu) The size clases are species independent if len_classes includes Species=ALL. . If length classes is given by predator in len_classes, species specific length classes will be added.