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