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[igraph] connected graph returns shortest.paths with inf
From: |
Martin Tomko |
Subject: |
[igraph] connected graph returns shortest.paths with inf |
Date: |
Tue, 31 Aug 2010 17:25:00 +0200 |
User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.8) Gecko/20100227 Lightning/1.0b1 Thunderbird/3.0.3 |
Dear All,
I am not sure how this can be possible - I have a graph (is.connected
returns TRUE), and when I run
nodes <- V(g);
y<-lapply(nodes,function(x){shortest.paths(g,x)})
I get Inf values in y
max(y[[1]]) returns Inf, and also sum(y[[1]]==Inf), meaning that there
are disconnected nodes.
How could that happen?
Cheers
Martin
--
Martin Tomko
Postdoctoral Research Assistant
Geographic Information Systems Division
Department of Geography
University of Zurich - Irchel
Winterthurerstr. 190
CH-8057 Zurich, Switzerland
email: address@hidden
site: http://www.geo.uzh.ch/~mtomko
mob: +41-788 629 558
tel: +41-44-6355256
fax: +41-44-6356848
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