make_halk {halk}

Create a hierarchical age-length key (HALK)

Description

This function creates a hierarchically nested age-length key that can be used to estimate age of an organism based on proportion of sampled organisms in each age group.

Usage

make_halk(data, levels = NULL, age_col = "age", size_col = "length", ...)

Arguments

data

A data.frame with age and size samples

levels

Character vector specifying the levels for HALK creation

age_col

Optional. String of the column name in data housing age data

size_col

Optional. String of the column name in data housing size data

...

Additional arguments passed to make_alk

Value

A tibble with columns for each level and a column called alk that houses the age-length key for that particular level

Examples

make_halk(spp_data, levels = "spp")