INLAspacetime (version 0.1.11)

paramsUtils: Functions to help converting from/to user/internal parametrization. The internal parameters are 'gamma_s, 'gamma_t', 'gamma_E' The user parameters are 'r_s', 'r_t', 'sigma'

Description

Functions to help converting from/to user/internal parametrization. The internal parameters are 'gamma_s, 'gamma_t', 'gamma_E' The user parameters are 'r_s', 'r_t', 'sigma'

Convert from user parameters to SPDE parameters

Convert from SPDE parameters to user parameters

Usage

lgsConstant(lg.s, alpha, smanifold)
params2gammas(
  lparams,
  alpha.t,
  alpha.s,
  alpha.e,
  smanifold = "R2",
  verbose = FALSE
)
gammas2params(lgammas, alpha.t, alpha.s, alpha.e, smanifold = "R2")

Value

the part of sigma from the spatial constant and \gamma_s.

log(gamma.s, gamma.t, gamma.e)

log(spatial range, temporal range, sigma)

Arguments

lg.s

the logarithm of the SPDE parameter \gamma_s

alpha

the resulting spatial order.

smanifold

spatial domain manifold, which could be "S1", "S2", "R1", "R2" and "R3".

lparams

log(spatial range, temporal range, sigma)

alpha.t

temporal order of the SPDE

alpha.s

spatial order of the spatial differential operator in the non-separable part.

alpha.e

spatial order of the spatial differential operator in the separable part.

verbose

logical if it is to print internal variables

lgammas

numeric of length 3 with \(log(\gamma_k)\) model parameters. The parameter order is log(gamma.s, gamma.t, gamma.e)

Details

See equation (23) in the paper.

See equations (19), (20) and (21) in the paper.

See equations (19), (20) and (21) in the paper.

Examples

params2gammas(log(c(1, 1, 1)), 1, 2, 1, "R2")
gammas2params(log(c(0, 0, 0)), 1, 2, 1, "R2")