raster.moments

0th

Percentile

Raster moments

Calculates focal statistical moments of a raster

Usage
raster.moments(x, type = "mean", s = 3, p = 0.75)
Arguments
x

raster object

type

The global statistic to represent the local deviation options are: "min", "min", "mean", "median", "var, "sd", "mad", "kurt", "skew", "quantile"

s

Size of matrix (focal window), can be single value or two values defining the [x,y] dimensions of the focal matrix

p

if type="quantile", the returned percentile.

Value

raster class object of the local distributional moment

Note

This is a simple wrapper for the focal function, returning local statistical moments

Aliases
  • raster.moments
Examples
# NOT RUN {
  library(raster)
  r <- raster(nrows=100, ncols=100, xmn=571823, xmx=616763, 
              ymn=4423540, ymx=4453690)
  proj4string(r) <- crs("+proj=utm +zone=12 +datum=NAD83 +units=m +no_defs")
  r[] <- runif(ncell(r), 1000, 2500)
  r <- focal(r, focalWeight(r, 150, "Gauss") )

# Calculate 10th percentile for 3x3 window
r.p10 <- raster.moments(r, type="quantile", p=0.10) 
# }
# NOT RUN {
# }
Documentation reproduced from package spatialEco, version 1.3-2, License: GPL-3

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