Displaying 4 results from an estimated 4 matches for "clauset".
Did you mean:
clause
2008 Sep 24
0
Simulations / repetitions help!
...assess the goodness of fit. Because the null
distribution of the KS statistic is not known when the distribution
parameters are estimated from the data I would like to use simulations to
generate a more accurate p-value (following the methods explained in the
second to last paragraph on page 11 of Clauset et al. [2007] available at
http://arxiv.org/abs/0706.1062 - also attached)
Specifically:
I would like to generate a random dataset (?x?) from a distribution (e.g.
exponential):
x<-rweibull(1500,shape,scale)
calculate the parameters of the best-fit distribution:
fitdistr(x,"weibull"...
2013 Feb 15
1
Fitting pareto distribution / plotting observed & fitted dists
...220588235294118, 0.0269607843137255, 0)
Out of curiosity, I plotted the double-log CDF and the Pareto Q-Q plots.
This provided me with a visual cue of a potential power-law distribution
(at least, that's what I am boldly thinking).
So I went ahead and performed the procedure as suggested by Clauset,
Shalizi, and Newman (2007/09), by reusing the essentials found in
http://tuvalu.santafe.edu/~aaronc/powerlaws/plfit.r.
I obtained and tested the following fitting estimates based on dat1:
xmin <- 0.01715686
alpha <- 2.381581
I then simply wanted to print the observed and fitted dists in...
2012 Jun 18
0
igraph 0.6 released
...algorithm by Blondel et al. was added, see multilevel.community().
- Distance between two community structures: compare.communities().
- Community structure via exact modularity optimization,
optimal.community().
- Hierarchical random graphs and community finding, porting the code
from Aaron Clauset. See hrg.game(), hrg.fit(), etc.
- Added the InfoMAP community finding method, thanks to Emmanuel
Navarro for the code. See infomap.community().
Shortest paths
--------------
- Eccentricity (eccentricity()), and radius (radius()) calculations.
- Shortest path calculations with get.shortest.paths...
2012 Jun 18
0
igraph 0.6 released
...algorithm by Blondel et al. was added, see multilevel.community().
- Distance between two community structures: compare.communities().
- Community structure via exact modularity optimization,
optimal.community().
- Hierarchical random graphs and community finding, porting the code
from Aaron Clauset. See hrg.game(), hrg.fit(), etc.
- Added the InfoMAP community finding method, thanks to Emmanuel
Navarro for the code. See infomap.community().
Shortest paths
--------------
- Eccentricity (eccentricity()), and radius (radius()) calculations.
- Shortest path calculations with get.shortest.paths...