spsurvey (version 5.5.1)

localmean_weight: Internal Function: Local Mean Variance Neighbors and Weights

Description

This function calculates the index values of neighboring points and associated weights required by the local mean variance estimator.

Usage

localmean_weight(x, y, prb, nbh = 4)

Value

If ginv fails to return valid output, a NULL object. Otherwise, a list containing two elements: a matrix named ij composed of the index values of neighboring points and a vector named gwt

composed of weights.

Arguments

x

Vector of x-coordinates for location of the sample points.

y

Vector of y-coordinates for location of the sample points.

prb

Vector of inclusion probabilities for the sample points.

nbh

Number of neighboring points to use in the calculations.

Author

Tom Kincaid