Orange Forum • View topic - How to construct Interaction graph? (Help, urgent!)

How to construct Interaction graph? (Help, urgent!)

A place to ask questions about methods in Orange and how they are used and other general support.

How to construct Interaction graph? (Help, urgent!)

Postby pacifly » Wed Jan 03, 2007 4:00

Hi, happy new year, everyone! I am a new user to this software, and I am having trouble with the Interaction Graph widget of Orange Canvas.
I am trying to use this widget to construct an interaction graph based on entropy measures of Interaction/Information Gain, but I could not constrcut the desired graph identical to what is present on the icon of the Interaction Graph widget, though it seems I could get numeric values of Class Entropy Removed from two-way interaction on the left canvas (and the right canvas is blank). Do I need to use other tools or scripts such as Python besides the already available Widgets?
I have downloaded the other widgets provided by Aleks Jakulin from http://www.ailab.si/~aleks/orng/, but I am not sure how to use it (if I should use it) to construct the Interaction Graph and Interaction Dendrogram. Please help me, thank you very much![/quote][/url]

Postby Gregor Leban » Thu Jan 04, 2007 9:33

To see the right graph you need to install graphviz software that can be found at http://www.graphviz.org/.


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