extraction_functions: Function for extracting distribution parameters

In epiparameter: Classes and Helper Functions for Working with Epidemiological Parameters

Function for extracting distribution parameters

Description

Set of functions that can be used to estimate the parameters of a distribution (lognormal, gamma, Weibull, normal) via optimisation from either the percentiles or the median and ranges.

Usage

.fit_range(param, val, dist = c("lnorm", "gamma", "weibull", "norm"))

.fit_percentiles(param, val, dist = c("lnorm", "gamma", "weibull", "norm"))

Arguments

param	Named numeric vector of the distribution parameters to be optimised.
val	Numeric vector, in the case of using percentiles it contains the values at the percentiles and the percentiles, in the case of median and range it contains the median, lower range, upper range and the number of sample points to evaluate the function at.
dist	A character string with the name of the distribution for fitting. Naming follows the base R distribution names (e.g. lnorm for lognormal).

Author(s)

Adam Kucharski, Joshua W. Lambert

epiparameter documentation built on April 3, 2025, 5:50 p.m.