r.colors.stddev - Sets color rules based on stddev from a raster map's mean value.
raster, color table
r.colors.stddev [-bz] map=name [--help] [--verbose] [--quiet] [--ui]
Color using standard deviation bands
Force center at zero
Print usage summary
Verbose module output
Quiet module output
Force launching GUI dialog
Name of raster map
r.colors.stddev set raster map color rules based on standard deviations from a map's mean value, either as a continuous color gradient or in color bands per standard deviation (S.D.) from the mean.
With the color band option values less that 1 S.D. from the mean are colored green, within 1-2 S.D. are colored yellow, within 2-3 S.D. are colored red, and beyond 3 S.D. are colored black.
For a differences map there is an option to lock the center of the color table at zero. Values more than two S.D. below the mean will be colored blue; values below the mean but less than 2 S.D. away will transition to white, and above the mean the colors will simularly transition to full red at +2 S.D.
North Carolina sample dataset location:
g.region raster=elevation -p
r.colors, r.univar, v.colors
Hamish Bowman, Dunedin, New Zealand
Last changed: $Date: 2016-05-16 12:06:50 +0200 (Mon, 16 May 2016) $
Available at: r.colors.stddev source code (history)
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