<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>I've attached an example script and output for using the MatPlotLib Python library in GRASS. This script replicates the functionality of d.histogram, but makes a much nicer looking plot. It also has more options, although I've included only a very few of the formatting possibilities here. The script sends the output from r.stats into 9 lines of code to produce the histogram with formatting options. Most of it is done by 4 lines. This can be run from the command line and does not require a GUI to be installed. It writes to a PNG file, but could easily be set to create a TclTk or wxPython interactive window as a user-selectable option. </div><div><br></div><div>The following command produces the attached histogram: </div><div><br></div><div>histogram_mpldemo.py input=elevation.10m bins=25 output="/users/cmbarton/documents/myhistogram" fillcolor=20:20:200</div><div><br></div></div><div>Maybe I'll try an xy graph of 2 maps/images with density plot options next.</div><div><br></div><div>To run this, you need to install MatPlotLib <<a href="http://matplotlib.sourceforge.net/">http://matplotlib.sourceforge.net/</a>>, which requires Numpy <http://numpy.scipy.org/>. Both are installable as binary eggs via the Python easy_install package manager or from most Linux package managers. Of course you need Python too. </div><div><br></div><div>Enjoy</div><div>Michael</div><div apple-content-edited="true"> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">____________________</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">C. Michael Barton, Professor of Anthropology</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Director of Graduate Studies</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">School of Human Evolution & Social Change</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Center for Social Dynamics & Complexity</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">Arizona State University</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">Phone: 480-965-6262</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">Fax: 480-965-7671</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">www: <<a href="http://www.public.asu.edu/~cmbarton">www.public.asu.edu/~cmbarton</a>></font></div></div></span><br class="Apple-interchange-newline"></div></span><br class="Apple-interchange-newline"> </div><div><br class="webkit-block-placeholder"></div><div></div></body></html>