hci_variance: Calculate variance of habitat connectivity in a region
In geohabnet: Geographical Risk Analysis Based on Habitat Connectivity

hci_variance

R Documentation

Calculate variance of habitat connectivity in a region

This function produces a map of variance of habitat connectivity across selected parameter values

hci_variance(
  indices,
  rast,
  global,
  east = NULL,
  west = NULL,
  geoscale,
  res = reso(),
  outdir = tempdir(),
  plt = TRUE
)

`indices`	SpatRaster. Collection of risk indices.
`rast`	SpatRaster. Template for variance output
`global`	Logical. Select `TRUE` if a global analysis is desired, `FALSE` otherwise. `east` and `west` are required when `TRUE`.
`east`	SpatRaster. Collection of risk indices on eastern extent.
`west`	SpatRaster. Collection of risk indices on western extent. When `TRUE`, `geoscale` is ignored. Default is `TRUE`.
`geoscale`	Vector. This refers to the geographical extent for the habitat connectivity analysis when `global` is set to `FALSE`. Default is `NULL`.
`res`	Numeric. This parameter refers to the spatial aggregation factor. This value is the number of cells that are grouped when aggregating a raster layer from fine to coarse spatial resolution to reduce computational costs. Setting this parameter to 1 would not aggregate the raster layers. Default is `reso()`.
`outdir`	Character. Output directory for saving raster in TIFF format. Default is `tempdir()`.
`plt`	`TRUE` if need to plot mean map, `FALSE` otherwise.