stempsv: Compute the Empirical Spatio-Temporal Semivariogram

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

Description

Compute the Empirical Spatio-Temporal Semivariogram

Usage

stempsv(
  response,
  xcoord,
  ycoord = NULL,
  tcoord,
  h_options = NULL,
  h_response = NULL,
  h_s_large = NULL,
  h_t_large = NULL,
  stempsv_options = NULL
)

Arguments

response	A vector of response variables (not required if h_response is provided).
xcoord	A vector of x-coordinates (not required if h_s_large is provided).
ycoord	A vector of y-coordinates (not required if h_s_large is provided).
tcoord	A vector of t-coordinates (not required if h_t_large is provided).
h_options	A list containing options to compute distances if response, xcoord, ycoord, and tcoord are provided. Named arguments are h_t_distmetric The temporal distance matrix (defaults to "euclidean"). . h_s_distmetric The spatial distance matrix (defaults to "euclidean").
h_response	A distance matrix of paired differences of the response variable.
h_s_large	A distance matrix of paired differences of the spatial locations.
h_t_large	A distance matrix of paired differences of the temporal locations.
stempsv_options	A list containing additional options. Named arguments are n_s_lag The number of spatial distance classes (defaults to 16). n_t_lag The number of temporal distance classes (defaults to 16). h_s_max The maximum spatial distance. Deafaults to half the maximum distance in the spatial domain. h_t_max The maximum temporal distance. Deafaults to half the maximum distance in the temporal domain.

Value

A data frame whose columns are

gammahat

The estimated empirical semivariogram value for for the spatio-temporal distance class.

n

The number of pairs for the spatio-temporal distance class

h_s_avg

The average spatial distance in the spatio-temporal distance class.

h_t_avg

The average temporal distance in the spatio-temporal distance class.

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