Rgraphviz - neato layout - edge weights have no effect
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@franz-quehenberger-1864
Last seen 7.4 years ago
Dear all, neato makes layouts according to a physical model in which the length of the edges is determined by springs. The weight of the edge is the strength of the spring. However, I was not able to find any influence of edge weight on the layout. In the http://www.graphviz.org/Documentation/neatoguide.pdf the attribute "len" is another parameter of the neato layout. set.seed(31) V=letters[1:5] g2=randomEGraph(V,0.5) plot(g2,"neato",main="All weights 1","All weights are 1.") # change and edge weight edgeData(g2, from = "d", to = "e", attr = "weight") <- 20 plot(g2,"neato",main="Nothing changed!") #try out length attribute change edgeDataDefaults(g2,"len")=1 edgeData(g2, from = "d", to = "e", attr = "len") <- 5 plot(g2,"neato",main="Nothing changed again!") Has anyone an idea how to achieve a change in the graph layout ? Best Franz Quehenberger -- Institute for Medical Informatics, Statistics and Documentation Graz, Austria
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@lilongisb-sibch-1725
Last seen 7.4 years ago
> Dear all, > > neato makes layouts according to a physical model in which the length of > the edges is determined by springs. The weight of the edge is the > strength of the spring. However, I was not able to find any influence of > edge weight on the layout. In the > http://www.graphviz.org/Documentation/neatoguide.pdf the attribute "len" > is another parameter of the neato layout. > > set.seed(31) > V=letters[1:5] > g2=randomEGraph(V,0.5) > plot(g2,"neato",main="All weights 1","All weights are 1.") > > # change and edge weight > edgeData(g2, from = "d", to = "e", attr = "weight") <- 20 > plot(g2,"neato",main="Nothing changed!") > > #try out length attribute change > edgeDataDefaults(g2,"len")=1 > edgeData(g2, from = "d", to = "e", attr = "len") <- 5 > plot(g2,"neato",main="Nothing changed again!") > > > Has anyone an idea how to achieve a change in the graph layout ? > > Best > > Franz Quehenberger > -- > Institute for Medical Informatics, Statistics and Documentation > Graz, Austria > > _______________________________________________ > Bioconductor mailing list > Bioconductor at stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: > http://news.gmane.org/gmane.science.biology.informatics.conductor >
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