hd.fit: hd.fit

In ForestPlots/BiomasaFP: BiomasaFP: Functions for analysing data downloaded from ForestPlots.net

hd.fit

Description

Fit height-diameter models for each level in a dataset. This is a wrapper for fit.weib.models.

Usage

hd.fit(htdata, level, weib.only = FALSE, thresh = 20, forest.type = TRUE)

Arguments

htdata	Dataframe containing height measurements.
level	Level to fit height-diameter model. One of "Plot", "Cluster", "BioR" and "Continent".
weib.only	Logical. Should the search for the best model be constrained to Weibull models. If TRUE, log-log models are only selected when neither Weibull models converge. Default is FALSE.
thresh	thresh argument to be passed to /codefit.weib.models
forest.type	Logical. If true (default), level is constrained to be within a particular forest type/

Value

Dataframe with estimated parameters, number of height measurments used to fit the models and the error at estimating AGB compared to AGB estimates using observed heights (in units of Mg per tree). Parameters of the 'best' model (i.e. lowest AGB prediction error) are also given.

Author(s)

Martin Sullivan

ForestPlots/BiomasaFP documentation built on April 28, 2023, 8:26 a.m.