sigma4jackknife {HeterFunctionalData}

Jackknife estimate of $sigma^4$ using an i.i.d. sample

Description

This function takes a random sample and approximates an unbiased estimate of the squared variance based on Jackknife estimate.

Usage

sigma4jackknife(x)

Arguments

x

is a vector of i.i.d. observations.

Value

Jackknife estimate of $sigma^4$, where $sigma^2$ is the variance.

Examples

  x=stats::rnorm(10)
  sigma4jackknife(x)