Multiple edges

Aug 5, 2010 at 10:22 PM

[Moved from another, unrelated discussion.  -- Tony]

Dear NodeXl group:
Can anyone tell me how to display the following kinds of edges:
1) Multiple unidirectional edge-types between two nodes
2. Two unidirectional edges going in opposite directions?
 
OR- if it can't display them, is there a way to handle them differently in the analysis?
 
Thank you!
John Rodgers,
 

John R. Rodgers, Ph.D.
Room M803
Department of Pathology & Immunology
Baylor College of Medicine
Houston, Texas 77030
713-798-3903
fax: 713-798-3700
jrodgers@bcm.tmc.edu

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~One can study only what one has first dreamed about. Science is formed rather on a reverie than on an experiment, and it takes a good many experiments to dispel the mists of the dream"

- Claude Bachelard,1938 "The Psychoanalysis of Fire", Beacon Press, p. 22 (Eng. translation by Alan Ross, 1964
~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Aug 5, 2010 at 10:28 PM
Edited Aug 5, 2010 at 10:29 PM

John:

I think you are not seeing my answers to your previous questions, which you'll find here:

http://nodexl.codeplex.com/Thread/View.aspx?ThreadId=219641
http://nodexl.codeplex.com/Thread/View.aspx?ThreadId=221433

Let me know if that doesn't answer your questions.  Also, see the release notes at http://nodexl.codeplex.com/wikipage?title=CompleteReleaseHistory.  The latest version, 1.0.1.130, automatically skips duplicate edges when graph metrics are calculated.

-- Tony

Aug 5, 2010 at 10:35 PM
Dear Tony,
Thanks for your patience- I did find the previous answer! That will help me considerably. Is there anyway to use weighted analysis of the network metrics themselves? For example, We could imagine transitivity as ranging from 0 to 1.
It WOULD be nice to have a spring-loaded tool to display edges of different types and directions. My own application will involve very small networks but I'm interested in the diversity and complexity of these. I could use color/opacity to represent the number of different types, but it would be nice to display different types with different colors on a spring and directions with arrows,
-John


From: tcap479 [mailto:notifications@codeplex.com]
Sent: Thursday, August 05, 2010 4:29 PM
To: Rodgers, John R
Subject: Re: Multiple edges [NodeXL:222637]

From: tcap479

John:

I think you are not seeing my answers to your previous questions, which you'll find here:

http://nodexl.codeplex.com/Thread/View.aspx?ThreadId=219641
http://nodexl.codeplex.com/Thread/View.aspx?ThreadId=221433

Let me know if that doesn't answer your questions. Also, see the release notes at http://nodexl.codeplex.com/wikipage?title=CompleteReleaseHistory. The latest version, 1.0.1.130, automatically skips duplicate edges when graph metrics are calculated.

-- Tony

Aug 6, 2010 at 5:00 PM

John:

None of our graph metrics take edge weight into account, a shortcoming we hope to fix in a future release.

I don't know if this will be helpful in your case, but have you tried NodeXL's Dynamic Filters feature?  It's at NodeXL, Analysis in the Excel ribbon.  It gives you filter sliders that cover the range of each numeric, date, and time column in the Edges and Vertices worksheet.  As you move the sliders, the edges and vertices that fall outside your selected ranges instantly disappear from the graph pane.  Thus, you could quickly adjust your graph so that it showed only edges with a weight greater than 2, for example, or edges with transitivity between 0 and 0.2.

-- Tony

Aug 9, 2010 at 4:40 AM
tony- thanks- I'll try that!
John


From: tcap479 [mailto:notifications@codeplex.com]
Sent: Sunday, August 08, 2010 7:27 PM
To: Rodgers, John R
Subject: Re: Multiple edges [NodeXL:222637]

From: tcap479

John:

None of our graph metrics take edge weight into account, a shortcoming we hope to fix in a future release.

I don't know if this will be helpful in your case, but have you tried NodeXL's Dynamic Filters feature? It's at NodeXL, Analysis in the Excel ribbon. It gives you filter sliders that cover the range of each numeric, date, and time column in the Edges and Vertices worksheet. As you move the sliders, the edges and vertices that fall outside your selected ranges instantly disappear from the graph pane. Thus, you could quickly adjust your graph so that it showed only edges with a weight greater than 2, for example, or edges with transitivity between 0 and 0.2.

-- Tony