hsp: Hierarchical Slope Position

In spatialEco: Spatial Analysis and Modelling Utilities

Hierarchical Slope Position

Description

Calculates a hierarchical scale decomposition of topographic position index

Usage

hsp(
  x,
  min.scale = 3,
  max.scale = 27,
  inc = 4,
  win = "rectangle",
  normalize = FALSE
)

Arguments

x	A terra SpatRaster class object
min.scale	Minimum scale (window size)
max.scale	Maximum scale (window size)
inc	Increment to increase scales
win	Window type, options are "rectangle" or "circle"
normalize	Normalize results to 0-1 scale (FALSE | TRUE)

Details

if win = "circle" units are distance, if win = "rectangle" units are number of cells

Value

terra SpatRaster class object of slope position

Author(s)

Jeffrey S. Evans <[e-mail]>

References

Murphy M.A., J.S. Evans, and A.S. Storfer (2010) Quantify Bufo boreas connectivity in Yellowstone National Park with landscape genetics. Ecology 91:252-261

Examples

 
  library(terra)
  elev <- rast(system.file("extdata/elev.tif", package="spatialEco"))
  hsp27 <- hsp(elev, 3, 27, 4, normalize = TRUE)
  plot(hsp27)
 

spatialEco documentation built on Nov. 18, 2023, 1:13 a.m.