Geografic-Information-System/display/d.histogram/d.histogram.html

<h2>DESCRIPTION</h2>

<em>d.histogram</em> 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.

<h2>NOTES</h2>

<em>d.histogram</em> respects the current geographic region settings 
and the current MASK (if one exists). 

<p><em>d.histogram</em> uses the colors in the map's color look-up table
(i.e., the map's <em>colr</em> or <em>colr2</em> file).

<h2>SEE ALSO</h2>

<em>
<a href="d.colortable.html">d.colortable</a>,
<a href="d.frame.html">d.frame</a>,
<a href="d.graph.html">d.graph</a>,
<a href="d.linegraph.html">d.linegraph</a>,
<a href="d.polar.html">d.polar</a>,
<a href="g.region.html">g.region</a>,
<a href="r.stats.html">r.stats</a>
</em>

<h2>AUTHOR</h2>

Dave Johnson
<br> DBA Systems, Inc. 
<br> 10560 Arrowhead Drive 
<br> Fairfax, Virginia 22030

<p><i>Last changed: $Date$</i>