combine_measurements: Combine data with reference measurements

In hellometry: Biomass Estimation from Allometric Relationships

Combine data with reference measurements

Description

Combine data and reference measurements into one table, to build the measurement table from both. Missing abundances in reference measurements are set to 1.

Usage

combine_measurements(dats, measurements)

Arguments

dats	Dataframe to be used for estimation.
measurements	Dataframe of reference measurements, or NULL.

Value

dats combined with reference measurements, or dats if measurements is NULL.

Examples

dats <-
  data.frame(species = c("sp_a", "sp_b"),
             stage = "larva",
             abundance = c(2, 5),
             size_col = "unknown",
             biomass_col = NA,
             biomass_type = "dry")
measurements <-
  data.frame(species = "sp_a",
             stage = "larva",
             size_col = c(3.1, 2.8),
             biomass_col = c(0.4, 0.3),
             biomass_type = "dry")

combine_measurements(dats, measurements)

hellometry documentation built on Nov. 11, 2026, 5:06 p.m.