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NAMEd.histogram - Displays a histogram in the form of a pie or bar chart for a user-specified raster map.KEYWORDSdisplay, histogram, statisticsSYNOPSISd.histogramd.histogram --help d.histogram [-nc] map=name [style=string] [color=name] [bgcolor=name] [nsteps=integer] [--help] [--verbose] [--quiet] [--ui] Flags:
Parameters:
DESCRIPTIONd.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.NOTESd.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). EXAMPLESRunning the command below will generate the bar graph shown in the figure:g.region raster=elevation -p d.mon wx0 d.histogram map=elevation Figure: Bar graph histogram for elevation map Running the command below will generate the pie graph shown in the
figure:
g.region raster=landuse96_28m -p d.histogram map=landuse96_28m style=pie Figure: Pie graph histogram for landuse map SEE ALSOd.colortable, d.frame, d.graph, d.linegraph, d.mon, d.polar, g.region, r.statsAUTHORDave JohnsonDBA Systems, Inc. 10560 Arrowhead Drive Fairfax, Virginia 22030 SOURCE CODEAvailable at: d.histogram source code (history)Main index | Display index | Topics index | Keywords index | Graphical index | Full index © 2003-2021 GRASS Development Team, GRASS GIS 7.8.6 Reference Manual
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