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d.histogram

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d.histogram: Displays a histogram in the form of a pie or bar chart for a user-specified raster map.

NAME
d.histogram - Displays a histogram in the form of a pie or bar chart for a user-specified raster map.

KEYWORDS

display

SYNOPSIS

d.histogram d.histogram help d.histogram [-nqC] map=name [style=string] [color=name] [bgcolor=name] [nsteps=integer] [--verbose] [--quiet] Flags: -n Display information for null cells -q Gather the histogram quietly -C Report for ranges defined in cats file (fp maps only) --verbose Verbose module output --quiet Quiet module output Parameters: map=name Raster map for which histogram will be displayed style=string Indicate if a pie or bar chart is desired Options: pie,bar Default: bar color=name Color for text and axes Either a standard color name or R:G:B triplet Default: black bgcolor=name Background color Either a standard GRASS color, R:G:B triplet, or "none" Default: white nsteps=integer Number of steps to divide the data range into (fp maps only) Default: 255

DESCRIPTION

d.histogram displays the category-value distribution for a user- specified raster map layer, in the form of a bar chart or a pie chart. The display will be displayed in the active display frame on the graphics monitor, using the colors in the raster map layer's color table. The program determines the raster map's category value distribution by counting cells.

NOTES

d.histogram respects the current geographic region settings and the current MASK (if one exists). d.histogram uses the colors in the map's color look-up table (i.e., the map's colr or colr2 file).
SEE ALSO
d.colors, d.colortable, d.frame, d.graph, d.linegraph, d.polar, g.region, r.stats
AUTHOR
Dave Johnson DBA Systems, Inc. 10560 Arrowhead Drive Fairfax, Virginia 22030 Last changed: $Date: 2007-05-17 10:13:14 +0200 (Thu, 17 May 2007) $ Full index (C) 2003-2010 GRASS Development Team D.HISTOGRAM(1)
 
 
 

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