STK_RBF_MATERN52 computes the Matern correlation function of order 5/2. CALL: K = stk_rbf_matern52 (H) computes the value of the Matern correlation function of order 5/2 at distance H. Note that the Matern correlation function is a valid correlation function for all dimensions. CALL: K = stk_rbf_matern52 (H, DIFF) computes the derivative of the Matern correlation function of order 5/2, at distance H, with respect the distance H if DIFF is equal to 1. (If DIFF is equal to -1, this is the same as K = stk_rbf_matern52(H).) See also: stk_rbf_matern, stk_rbf_matern32
Package: stk