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[igraph] dyad_census() does not hold large graph
From: |
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Subject: |
[igraph] dyad_census() does not hold large graph |
Date: |
Sat, 15 Jun 2013 21:33:41 +0800 |
Hi all,
I'm using igraph in python.
I have a graph with 50309 nodes and 332582 edges.
when I call dyad_census(), it returns: 44684 mutual, 243214 asymmetric, -882298960 null dyads
as you can see, the number for null is a negative.
Of course, I can calculate it by (50309*50308-2*44684-2*243214)/2=1265184688.
I just present this case I encount.
for smaller graph, it works well.
I think it's just because the number becomes too large, so that it overflows.
isn't held by a 64-bit integer, then?
Thanks.
Gang
- [igraph] dyad_census() does not hold large graph,
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