unscaledCorr: Calculate an unscaled NSGP correlation matrix
Description
Calculate an unscaled NSGP correlation matrix
Usage
unscaledCorr(Dist.mat, corrModel, gamma = NULL, nu = NULL)
Value
A matrix
Arguments
Dist.mat
Distance matrix
corrModel
Correlation function specification used for g(.). It can be
either "pow.ex" or "matern".
gamma
Power parameter used in powered exponential kernel function. It
must be 0<gamma<=2.
nu
Smoothness parameter of the Matern class. It must be a positive
value.
References
Konzen, E., Shi, J. Q. and Wang, Z. (2020) "Modeling
Function-Valued Processes with Nonseparable and/or Nonstationary Covariance
Structure" <arXiv:1903.09981>.