Hi Gergely,<div><br></div><div>I do a lot of predictive modeling, and the approach I take is to export my data (prepared in GRASS GIS) to an open-source modeling software such WEKA, and then map the results using GRASS. It takes a little more work than utilizing built in modeling options often found in GIS software, but you can do a lot more with it... For GRASS this entails exporting your variables (rasters I'm guessing) as single column and combining them into a csv file which you pass to WEKA. Then you map the results of your predictive modeling in GRASS. If you want more detailed steps I could help you out, but my suggestion is to just play around with it to see if it'll work for you. I'm writing a program at the moment which couples GRASS and WEKA, but it's still in a very beta state. </div>
<div><br></div><div>Best,</div><div>Nick<br><br><div class="gmail_quote">On Wed, Jan 18, 2012 at 6:00 PM, fegyi001 <span dir="ltr"><<a href="mailto:fegyi001@gmail.com">fegyi001@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hey Everyone!<br>
<br>
Until now I've worked with ArcGIS, but recently changed to GRASS GIS. Enjoy<br>
it!<br>
In ArcGIS there is an extension called ArcSDM (Spatial Data Modeler),<br>
including the Weights of Evidence method which is an excellent way for<br>
archaeological predictive modeling.<br>
<br>
I would like to use this method in GRASS GIS. Does anyone know any similar<br>
here in GRASS?<br>
<br>
Thanks in advance,<br>
<br>
Gergely Padányi-Gulyás<br>
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