Matern covariance function with power transform

covf = new(covf_mat25pow)

This is the standard Matern covariance function with a power transformation which has form $$c(x_1,x_2) = (1+ |h| + h^2/3) \exp(-|h|) $$ where \(h = (x_1^\alpha-x_2^\alpha)/\rho\) and hyp is a two dimensional vector with \(\rho\)=exp(2*hyp[0]+0.25*hyp[1]) and \(\alpha\)=exp(0.25*hyp[1]).

Value

no returns, this is a class which contains methods

See also

base class: covf