spatialEco: srr – R documentation

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srr

Surface Relief Ratio

Description

Calculates the Pike (1971) Surface Relief Ratio

Usage

srr(x, s = 5, ...)

Arguments

`x`	raster object
`s`	Focal window size
`...`	Additional arguments passed to raster::calc

Value

raster class object of Pike's (1971) Surface Relief Ratio

Note

Describes rugosity in continuous raster surface within a specified window. The implementation of SRR can be shown as: (mean(x) - min(x)) / (max(x) - min(x))

Author(s)

Jeffrey S. Evans <jeffrey_evans@tnc.org>

Examples

library(raster)
  data(elev)
  r.srr <- srr(elev, s=5)
    plot(r.srr, main="Surface Relief Ratio")

spatialEco

Spatial Analysis and Modelling Utilities

v1.3-6

GPL-3

Authors

Jeffrey S. Evans [aut, cre], Melanie A. Murphy [ctb], Karthik Ram [ctb]

Initial release

2021-03-24

srr