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mev (version 1.17)

powerexp.cor: Power exponential correlation model

Description

The power correlation model is $$\rho(h) = \exp\{-(\|h\|/\lambda)^\alpha\}, \quad \lambda>0, \alpha \in [0,2).$$

Usage

powerexp.cor(h, alpha = 1, scale = 1)

Value

a vector or matrix of correlations of the same dimensions as h

Arguments

h

vector or matrix of pairwise distances

alpha

smoothness parameter

scale

scale parameter