singl_ll_nn_hess: Evaluate log-lik
In smile: Spatial Misalignment: Interpolation, Linkage, and Estimation

singl_ll_nn_hess

R Documentation

Evaluate log-lik

Evaluate the log-likelihood for a given set of parameters

singl_ll_nn_hess(
  theta,
  .dt,
  dists,
  npix,
  model,
  nu = NULL,
  tr = NULL,
  kappa = 1,
  mu2 = 1.5,
  apply_exp = FALSE
)

`theta`	a `numeric` vector of size 3 containing the parameters values associated with μ, σ^2, and φ, respectively.
`.dt`	a `numeric` vector containing the variable Y.
`dists`	a `list` of size three. The first containing the distance matrices associated with the regions where Y was measured, the second for the distance matrices associated with X, and the last containing the cross-distance matrices.
`npix`	a `integer vector` containing the number of pixels within each polygon. (Ordered by the id variables for the polygons).
`model`	a `character` indicating which covariance function to use. Possible values are `c("matern", "pexp", "gaussian", "spherical")`.
`nu`	ν parameter. Not necessary if `mode` is `"gaussian"` or `"spherical"`
`tr`	taper range
`kappa`	κ \in \{0, …, 3 \} parameter for the GW cov function.
`mu2`	the smoothness parameter μ for the GW function.
`apply_exp`	a `logical` indicater wheter the exponential transformation should be applied to variance parameters. This facilitates the optimization process.