vrm

0th

Percentile

Vector Ruggedness Measure (VRM)

Implementation of the Sappington et al., (2007) vector ruggedness measure

Usage
vrm(x, s = 3, file.name = NULL, ...)
Arguments
x

Elevation raster class object

s

Scale of window. Must be odd number, can represent 2 dimensions (eg., s=c(3,5) would represent a 3 x 5 window)

file.name

Name of output raster (optional)

...

Additional arguments passed to writeRaster

Value

raster class object or raster written to disk

Note

This function measures terrain ruggedness by calculating the vector ruggedness measure

References

Sappington, J.M., K.M. Longshore, D.B. Thomson (2007). Quantifying Landscape Ruggedness for Animal Habitat Analysis: A case Study Using Bighorn Sheep in the Mojave Desert. Journal of Wildlife Management. 71(5):1419-1426

Aliases
  • vrm
Examples
# NOT RUN {
 library(raster)
 data(elev)
   vrm3 <- vrm(elev) 
   vrm5 <- vrm(elev, s=5)
   plot(stack(vrm3, vrm5))

# }
Documentation reproduced from package spatialEco, version 1.3-2, License: GPL-3

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