Best param for geosom model — geosom

Function for determining the best parameter for the geosom model

Usage

geosom_bestparam(
  data,
  coords,
  wt,
  xdim,
  ydim,
  topo = c("rectangular", "hexagonal"),
  neighbourhood.fct = c("bubble", "gaussian"),
  cores = 1,
  ...
)

Arguments

data: A data.frame or tibble
coords: The coordinate column name in the data.
wt: The weight vector of spatial coordination.
xdim: X dimensions of the grid, a numeric vector.
ydim: Y dimensions of the grid, a numeric vector.
topo: (optional) Default use hexagonal and rectangular.
neighbourhood.fct: (optional) Default use bubble and gaussian neighbourhoods together when training a GeoSOM model.
cores: positive integer(default is 1). If cores > 1, a 'parallel' package cluster with that many cores is created and used. You can also supply a cluster object.
...: (optional) Other arguments passed to geosom().

Value

A list with the optimal parameter in the provided parameter combination and the corresponding error.

Author

Wenbo Lv lyu.geosocial@gmail.com

Examples

if (FALSE) {
data(pmc)
set.seed(2004)
geosom_bestparam(data = pmc, coords = c("centroidx","centroidy"),
wt = seq(0.1,5,by = 0.1),xdim = 3:10, ydim = 3:10,cores = 6)
}