Re: [igraph] Segmentation fault constructing graph when using igraph_attribute_table_t

[Gábor Csárdi]

You don't call the functions in the attribute handler's table, they
are called automatically by the igraph functions. Just call
igraph_delete_vertices to remove the vertices and the attributes are
taken care of.
For examples download the igraph source tar.gz from the homepage and
look at examples/simple/cattributes.c

Basically all you have to do is set the attribute handler table, and
then set/query the attributes.

Btw. using igraph from R or Python is much easier and more convenient,
especially if you use vertex/edge attributes.

Gabor

On Wed, Oct 29, 2008 at 6:34 PM, Natalia Olano <address@hidden> wrote:
> Hello again!
>
> Could you please provide an example on how to use the igraph_cattribute_table?
>
> If I try to call delete_vertices(igraph_t *graph, const
> igraph_vector_t *eidx,const igraph_vector_t *vidx), which is the
> function I am actually interested in using, the compiler does not find
> the function (/var/tmp//cc3hltA4.o(.text+0x28f): In function `main'::
> undefined reference to `delete_vertices').
>
> When   I examine the elements from
> show_list(&gnames,&gtypes,&vnames,&vtypes,&enames,&etypes) I get all
> the vectors are zero length at the return of the function even when
> the graph is not an empty graph.
>
> Thanks for your help
> --
> Natalia Olano
>
>
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>



-- 
Gabor Csardi <address@hidden>     UNIL DGM