Am 28.08.20 um 12:09 schrieb Snehal Shekatkar: > Hi Tiago, > > From the documentation of deg_sampler: "This function is called once per > vertex, but may be called more times, if the degree sequence cannot be used > to build a graph." > > Now suppose my deg_sampler sometimes returns values greater than N-1, and if > I don't want to generate a graph with multi-edges and self-loops, such values > will be discarded. But suppose for first few vertices, drawn values were less > than N (and hence are accepted) and the next value is greater than N-1. Now > will all the values generated so far discarded or only the last value? I feel > that discarding only the last value will create a bias if I want to sample > degrees from a particular probability distribution. Could you please clarify > this?
What the algorithm does is to sample the degrees for all vertices first, and check if the final sequence is graphical. If it's not, then a random node is selected, and its degree is re-sampled, and the test is done again. This is repeated, until the sequence obtained is graphical. Best, Tiago -- Tiago de Paula Peixoto <ti...@skewed.de>
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