Dear all,
I'm not familiar with bug reporting and tracking, thus my apologies for
spamming the help-list.
Anyway, I noticed that the "degree.distribution" function returns "NULL" under
R v3.0.1.
I think this might be due to the fact that the "hist" function, which is
called, returns an object
that doesn't have an "intensity" component anymore (since R 3.0.0).
Could that be?
A temporary fix might be to define your own function:
degree.distribution<-function (graph, cumulative = FALSE, ...)
{
if (!is.igraph(graph)) {
stop("Not a graph object")
}
cs <- degree(graph, ...)
hi <- hist(cs, -1:max(cs), plot = FALSE)$density
if (!cumulative) {
res <- hi
}
else {
res <- rev(cumsum(rev(hi)))
}
res
}
Cheers,
--
Fabio
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