% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/pmm3_utils.R
\name{pmm3_variance_factor}
\alias{pmm3_variance_factor}
\title{Calculate PMM3 theoretical variance reduction factor}
\usage{
pmm3_variance_factor(m2, m4, m6)
}
\arguments{
\item{m2}{Second central moment}

\item{m4}{Fourth central moment}

\item{m6}{Sixth central moment}
}
\value{
A list with components:
\item{gamma4}{Excess kurtosis}
\item{gamma6}{Sixth-order cumulant coefficient}
\item{g3}{Theoretical variance reduction factor}
}
\description{
Computes the standardised cumulant coefficients gamma4 and gamma6 from
the raw central moments, and derives the PMM3 efficiency factor
\eqn{g_3 = 1 - \gamma_4^2 / (6 + 9\gamma_4 + \gamma_6)}.
}
