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d.histogram
Langue: en
Version: 371265 (fedora - 01/12/10)
Section: 1 (Commandes utilisateur)
NAME
d.histogram - Displays a histogram in the form of a pie or bar chart for a user-specified raster map.KEYWORDS
displaySYNOPSIS
d.histogramd.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.statsAUTHOR
Dave JohnsonDBA Systems, Inc.
10560 Arrowhead Drive
Fairfax, Virginia 22030
Last changed: $Date: 2007-05-17 10:13:14 +0200 (Thu, 17 May 2007) $
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