Displaying 5 results from an estimated 5 matches for "barabasi".
2011 Apr 26
1
Barplot for degree distribution
In barplot for degree distribution x-axis is not seen.
See the example below
> g = barabasi.game(500, 0.4)
> dd1 = degree.distribution(g)
> plot(dd1, xlab="degree", ylab = "frequency")
whereas barplot doesnot have any x-axis
> barplot(dd1, xlab = "degree", ylab = "frequency")
Please see the figures attached.
http://r.789695.n4.nabble.com...
2010 Sep 11
0
igraph, graph layout and node overlaps
...value (10) the
layout function generates a plot without node overlaps. But even with a
not-so-big number
of nodes (50) plotted graph has almost all nodes overlapped by neighbors
vertices.
The problem gets even worst if I increase vertex size.
# R code
require(igraph)
NumOfNodes <- 10
g <- barabasi.game(NumOfNodes)
g$layout <- layout.reingold.tilford(g)
plot(g)
NumOfNodes <- 50
g <- barabasi.game(NumOfNodes)
g$layout <- layout.reingold.tilford(g)
plot(g)
Actually I'm using GraphViz which has an option to avoid overlaps but I
can't find
something similar in igraph docume...
2010 May 13
2
need help in igraph package of R
...- read.graph("names[i]", "pajek")
d <- degree (g, mode="in")
power.law.fit (d+1, 2)
i <- i + 1
}
but names[i] does n't seem to work. Is there any alternative ?
I want to know how to use a variable file name in this syntax
Any help is greately appreciated
barabasi
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2012 Jun 18
0
igraph 0.6 released
...ayout based on multidimensional scaling, layout.mds().
- New layouts layout.grid() and layout.grid.3d().
- Sugiyama layout algorithm for layered directed acyclic graphs,
layout.sugiyama().
Graph generators
----------------
- New graph generators: static.fitness.game(), static.power.law.game().
- barabasi.game() was rewritten and it supports three algorithms now,
the default algorithm does not generate multiple or loop edges.
The graph generation process can now start from a supplied graph.
- The Watts-Strogatz graph generator, igraph_watts_strogatz() can
now create graphs without loop edges....
2012 Jun 18
0
igraph 0.6 released
...ayout based on multidimensional scaling, layout.mds().
- New layouts layout.grid() and layout.grid.3d().
- Sugiyama layout algorithm for layered directed acyclic graphs,
layout.sugiyama().
Graph generators
----------------
- New graph generators: static.fitness.game(), static.power.law.game().
- barabasi.game() was rewritten and it supports three algorithms now,
the default algorithm does not generate multiple or loop edges.
The graph generation process can now start from a supplied graph.
- The Watts-Strogatz graph generator, igraph_watts_strogatz() can
now create graphs without loop edges....