raster.Zscore: Modified z-score for a raster

Description Usage Arguments Value Note Author(s) Examples

View source: R/raster.Zscore.R

Description

Calculates the modified z-score for all cells in a raster

Usage

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raster.Zscore(x, p.value = FALSE, file.name = NULL, ...)

Arguments

x

A raster class object

p.value

Return p-value rather than z-score raster (FALSE/TRUE)

file.name

Name of raster written to disk

...

Additional arguments passed to writeRaster

Value

raster class object or raster writtent to disk

Note

Since this functions needs to operate on all of the raster values, it is not memory safe

Author(s)

Jeffrey S. Evans <[email protected]>

Examples

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library(raster)
r <- raster(nrows=824, ncols=767, xmn=2451905, xmx=3218905, 
            ymn=-2744771, ymx=-1920771, resolution = 5000)
  r[] <- runif(ncell(r), 0, 1)

# Modified z-score
z <- raster.Zscore(r)

# P-value
p <- raster.Zscore(r, p.value = TRUE)

jeffreyevans/spatialEco documentation built on Nov. 10, 2018, 4:13 a.m.