Moran_I_ByRaster: Compute Moran's I for a raster sampled from a mapunit extent

In sharpshootR: A Soil Survey Toolkit

Compute Moran's I for a raster sampled from a mapunit extent

Description

Compute Moran's I using a subset of sample collected within the extent of a mapunit. This is likely an under-estimate of SA because we are including pixels both inside/outside MU delineations

Usage

Moran_I_ByRaster(
  r,
  mu.extent = NULL,
  n = NULL,
  k = NULL,
  do.correlogram = FALSE,
  cor.order = 5,
  crop.raster = TRUE
)

Arguments

r	single SpatRaster
mu.extent	SpatVector representation of mapunit polygons bounding box (via terra::ext())
n	number of regular samples (what is a reasonable value?)
k	number of neighbors used for weights matrix
do.correlogram	compute correlogram?
cor.order	order of correlogram
crop.raster	optionally disable cropping of the raster layer

Details

This function uses the spdep::moran.test() function

Value

If do.correlogram is TRUE a list with estimated Moran's I (⁠$I⁠) and the correlogram (⁠$correlogram⁠), otherwise the estimated Moran's I value.

Author(s)

D.E. Beaudette

sharpshootR documentation built on Oct. 23, 2024, 1:06 a.m.