Hi Tamas,
Great! Thanks!
Thanks also for the hint on the symbolic names. I was already aware of
that and converted my numbers into characters.
Cheers,
Tim
Am 17.05.2013 13:24, schrieb Tamás Nepusz:
Hi,
My matrix el looks like this
V1 V2
12345 29999
29999 34567
76543 NA
[...]
After having got that error I tried to replace the NAs with the same vertix id,
so that I would get an edge like 1234 1234
However, this results in loop-edges and not isolates.
You can get rid of the loop edges using simplify(g, remove.multiple=FALSE,
remove.loops=TRUE) -- this will probably achieve what you want. However, note that
vertices in igraph are numbered continuously from 1 in the R interface, so if your matrix
contains the three rows above, then you will end up with 76543 vertices. If this is not
what you want, you can use graph.data.frame instead which will treat the vertex names in
the data frame as *symbolic* names. In this case, igraph will make up the vertex IDs as
it goes and the corresponding names will be stored in the "name" vertex
attribute.
Best,
Tamas
_______________________________________________
igraph-help mailing list
[email protected]
https://lists.nongnu.org/mailman/listinfo/igraph-help
_______________________________________________
igraph-help mailing list
[email protected]
https://lists.nongnu.org/mailman/listinfo/igraph-help
