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It is landsat 8, which is 16 bit. So that may account for one issue. If so, the error about matplotlib is a 2nd issue.
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<div class="">Michael<br class="">
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____________________</div>
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<font face="Helvetica" size="3" class="">C. Michael Barton</font></div>
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<font face="Helvetica" size="3" class="">Director, Center for Social Dynamics & Complexity </font></div>
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<font face="Helvetica" size="3" class="">Professor of Anthropology, School of Human Evolution & Social Change</font></div>
<div class=""><font face="Helvetica" size="3" class="">Head, Graduate Faculty in Complex Adaptive Systems Science</font></div>
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<font face="Helvetica" size="3" class="">Arizona State University</font></div>
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<font face="Helvetica" size="3" class=""><font class="">voice: </font><font class="">480-965-6262 (SHESC), 480-965-8130/727-9746 (CSDC)</font><br class="">
<font class="">fax: 480-965-7671 (SHESC), 480-727-0709 (CSDC)</font><br class="">
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<font face="Helvetica" size="3" class="">www: <a href="http://www.public.asu.edu/~cmbarton" class="">
http://www.public.asu.edu/~cmbarton</a>, <a href="http://csdc.asu.edu" class="">http://csdc.asu.edu</a></font></div>
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<div class="">On Dec 2, 2015, at 8:20 PM, Anna Petrášová <<a href="mailto:kratochanna@gmail.com" class="">kratochanna@gmail.com</a>> wrote:</div>
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<div dir="ltr" class="">Is it landsat 8? g.gui.iclass is rewritten i.class which supported only 256 categories...<br class="">
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<div class="gmail_quote">On Tue, Dec 1, 2015 at 5:55 PM, Michael Barton <span dir="ltr" class="">
<<a href="mailto:Michael.Barton@asu.edu" target="_blank" class="">Michael.Barton@asu.edu</a>></span> wrote:<br class="">
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<div style="word-wrap:break-word" class="">Apparently no graphs work in the interactive iclass module. Also, it doesn’t seem to work otherwise.
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<div class="">I can mark training fields with no problem. I can export them with no problem. <br class="">
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<div class="">But when I click the update button, the preview screen goes blank for a bit for each class then returns to the original base raster with nothing showing. The command console displays the following errors (one for each class):</div>
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<div class="">Data error preparing signatures: value (19592) > num of cats</div>
<div class="">(256)</div>
<div class="">Data error preparing signatures: value (8089) > num of cats</div>
<div class="">(256)</div>
<div class="">Data error preparing signatures: value (11048) > num of cats</div>
<div class="">(256)</div>
<div class="">Data error preparing signatures: value (9218) > num of cats</div>
<div class="">(256)</div>
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<div class="">I’ve looked at the very slim help file and it did not help. Copying Helena and Anna in case they’ve be successful with this working.</div>
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<div class="">Michael</div>
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____________________</div>
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<font face="Helvetica" size="3" class="">C. Michael Barton</font></div>
<div style="font-variant:normal;letter-spacing:normal;line-height:normal;text-transform:none;white-space:normal;word-spacing:0px" class="">
<font face="Helvetica" size="3" class="">Director, Center for Social Dynamics & Complexity </font></div>
<div style="font-variant:normal;letter-spacing:normal;line-height:normal;text-transform:none;white-space:normal;word-spacing:0px" class="">
<font face="Helvetica" size="3" class="">Professor of Anthropology, School of Human Evolution & Social Change</font></div>
<div class=""><font face="Helvetica" size="3" class="">Head, Graduate Faculty in Complex Adaptive Systems Science</font></div>
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<font face="Helvetica" size="3" class="">Arizona State University</font></div>
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<font class="">fax: <a href="tel:480-965-7671" value="+14809657671" target="_blank" class="">
480-965-7671</a> (SHESC), <a href="tel:480-727-0709" value="+14807270709" target="_blank" class="">480-727-0709</a> (CSDC)</font><br class="">
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<font face="Helvetica" size="3" class="">www: <a href="http://www.public.asu.edu/~cmbarton" target="_blank" class="">
http://www.public.asu.edu/~cmbarton</a>, <a href="http://csdc.asu.edu/" target="_blank" class="">
http://csdc.asu.edu</a></font></div>
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<div class="">On Dec 1, 2015, at 3:33 PM, Michael Barton <<a href="mailto:michael.barton@ASU.Edu" target="_blank" class="">michael.barton@ASU.Edu</a>> wrote:</div>
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<div class="">When I try to use g.gui.iclass, I get the error in the attached file. It says it was unable to import matplotlib. Then it says it did find matplotlib but it was the wrong architecture. </div>
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<div class="">If I fire up Python from the GRASS terminal and import matplotlib, it is fine. I also tried to install matplotlib from the terminal in case it would find a correct architecture version. This also went fine. </div>
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<div class="">So I begin to suspect that this is a bug instead of a problem with my systems. Any thoughts?</div>
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<div class="">Mac OS X 10.10.3</div>
<div class="">GRASS 7.0.2, compliled a week ago.</div>
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<div class="">Michael</div>
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____________________</div>
<div style="font-variant:normal;letter-spacing:normal;line-height:normal;text-transform:none;white-space:normal;word-spacing:0px" class="">
<font face="Helvetica" size="3" class="">C. Michael Barton</font></div>
<div style="font-variant:normal;letter-spacing:normal;line-height:normal;text-transform:none;white-space:normal;word-spacing:0px" class="">
<font face="Helvetica" size="3" class="">Director, Center for Social Dynamics & Complexity </font></div>
<div style="font-variant:normal;letter-spacing:normal;line-height:normal;text-transform:none;white-space:normal;word-spacing:0px" class="">
<font face="Helvetica" size="3" class="">Professor of Anthropology, School of Human Evolution & Social Change</font></div>
<div class=""><font face="Helvetica" size="3" class="">Head, Graduate Faculty in Complex Adaptive Systems Science</font></div>
<div style="font-variant:normal;letter-spacing:normal;line-height:normal;text-transform:none;white-space:normal;word-spacing:0px" class="">
<font face="Helvetica" size="3" class="">Arizona State University</font></div>
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480-965-7671</a> (SHESC), <a href="tel:480-727-0709" value="+14807270709" target="_blank" class="">480-727-0709</a> (CSDC)</font><br class="">
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<font face="Helvetica" size="3" class="">www: <a href="http://www.public.asu.edu/~cmbarton" target="_blank" class="">
http://www.public.asu.edu/~cmbarton</a>, <a href="http://csdc.asu.edu/" target="_blank" class="">
http://csdc.asu.edu</a></font></div>
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