initial: Create Initial Values

In michaeldumelle/DumelleEtAl2021STLMM: Fit Spatio-Temporal Linear Mixed Models

Description

A wrapper around make_covparam_object that requires specification of estmethod.

Usage

initial(
  s_de,
  s_ie,
  t_de,
  t_ie,
  st_de,
  st_ie,
  v_s,
  v_t,
  s_range,
  t_range,
  estmethod,
  stcov
)

Arguments

s_de	The spatial dependent variance (spatial partial sill).
s_ie	The spatial independent variance (spatial nugget).
t_de	The temporal dependent variance (temporal partial sill).
t_ie	The temporal independent variance (temporal nugget).
st_de	The spatio-temporal dependent variance (spatio-temporal partial sill).
st_ie	The spatio-temporal independent variance (spatio-temporal nugget).
v_s	The proportion of spatial dependent variance (if estmethod = "product").
v_t	The proportion of temporal dependent variance (if estmethod = "product").
s_range	The spatial effective range (the spatial distance at which the correlation equals 0.05 (for non-compact) or 0 (for compact correlations)
t_range	The spatial effective range (the spatial distance at which the correlation equals 0.05 (for non-compact) or 0 (for compact correlations)
estmethod	The estimation method reml Restricted Maximum Likelihood svwls Semivariogram Weighted Least Squares
stcov	The spatio-temporal covariance type product The product LMM sum_with_error The sum-with-error LMM productsum The product sum LMM

Value

A named vector with covariance parameters having class equal to the estmethod argument and the stcov argument.

michaeldumelle/DumelleEtAl2021STLMM documentation built on Dec. 21, 2021, 5:56 p.m.