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[igraph] random graph in C

From: giuseppe de marco
Subject: [igraph] random graph in C
Date: Tue, 21 Oct 2008 10:19:51 +0900
User-agent: Thunderbird (X11/20080914)

I would like to generate a power-law random graph , with varying exponent, but in C not in R. I saw that there is igraph_barabasi_game function, but I do not know how to set the attractive parameter . In fact, in the growing graph model of Dorogovstev the probability of incoming edges at each time step is:
P(k) = A + k^alpha
for large time-step
P(k) ~ k^(-gamma)
gamma = 2 + A/m.
So, if I could control A and m I could control gamma.

Giuseppe De Marco, PhD
Toyota Technological Institute
468-8511 Aichi 2-12-1 Hisakata, Tenpaku-ku, Nagoya, Japan
Email: demarco at toyota-ti dot ac dot jp
Tel (int): +81 (052)-809-1802
Skype-Id: giuseppe_dem2

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