| covf_mat25ang | R Documentation |
covf = new(covf_mat25ang)
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 = √{(\sin(x_1)-\sin(x_2))^2/ρ_s + (\cos(x_1)-\cos(x_2))^2/ρ_c}.
hyp is a two dimensional vector with
ρ_s=exp(2*hyp[0]) and ρ_c=exp(2*hyp[1]).
no returns, this is a class which contains methods
base class: covf