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Re: [igraph] edge indexing
From: |
Elena Tea Russo |
Subject: |
Re: [igraph] edge indexing |
Date: |
Mon, 15 Jun 2015 16:47:29 +0200 |
Thank you too, Gabor.
I can just guess the problems that a "fixed" indexing in a graph could lead to.
I suppose neither edges and vertex selectors are then reliable after I modify
my graph?
I'll have to rethink a bit my code, but I luckily can manage my problem
throughout an adjacency matrix.
Thanks again!
Et Russo
Il giorno 15/giu/2015, alle ore 15:20, Gábor Csárdi <address@hidden> ha scritto:
> Hi,
>
> I understand that reassigning ids is very difficult to work with, it
> was a decision long time ago, and unfortunately we have to live with
> it now, and for the foreseeable future.
>
> A useful way of thinking about this, especially in R, is that igraph
> _never_ modifies a graph. It always creates new graphs. So when you
> say delete.edges(), the old graph is not modified, and a new graph is
> created based on it.
>
> In general, you cannot assume anything about the relationship between
> the internal ids of the old graph and the new graph.
>
> I hope this helps,
> Gabor
- [igraph] Import error in python : undefined symbol gzopen64, ashutosh srivastava, 2015/06/10
- Re: [igraph] Import error in python : undefined symbol gzopen64, Tamás Nepusz, 2015/06/10
- Re: [igraph] Import error in python : undefined symbol gzopen64, ashutosh srivastava, 2015/06/10
- Re: [igraph] Import error in python : undefined symbol gzopen64, Tamas Nepusz, 2015/06/11
- Re: [igraph] Import error in python : undefined symbol gzopen64, ashutosh srivastava, 2015/06/12
- [igraph] edge indexing, Elena Tea Russo, 2015/06/14
- Re: [igraph] edge indexing, Tamas Nepusz, 2015/06/15
- Re: [igraph] edge indexing, Elena Tea Russo, 2015/06/15
- Re: [igraph] edge indexing, Gábor Csárdi, 2015/06/15
- Re: [igraph] edge indexing,
Elena Tea Russo <=
- Re: [igraph] edge indexing, Gábor Csárdi, 2015/06/15
- Re: [igraph] Import error in python : undefined symbol gzopen64, Tamas Nepusz, 2015/06/15
- Re: [igraph] Import error in python : undefined symbol gzopen64, Tamas Nepusz, 2015/06/15
- Re: [igraph] Import error in python : undefined symbol gzopen64, ashutosh srivastava, 2015/06/15