localmean_cov {spsurvey}

Internal Function: Variance-Covariance Matrix Based on Local Mean Estimator

Description

This function calculates the variance-covariance matrix using the local mean estimator.

Usage

localmean_cov(zmat, weight_1st)

Arguments

zmat

Matrix of weighted response values or weighted residual values for the sample points.

weight_1st

List from the local mean weight function containing two elements: a matrix named ij composed of the index values of neighboring points and a vector named gwt composed of weights.

Value

The local mean estimator of the variance-covariance matrix.

Author(s)

Tom Kincaid [e-mail]