Please send complete code that reproduces the error. Thanks. G. On Tue, Jan 13, 2015 at 11:55 AM, Daniel Penalva <[email protected]> wrote:
> i setted igraph_i_set_attribute_table(&igraph_cattribute_table) in the > int main(void) > > On Tue, Jan 13, 2015 at 2:46 PM, Daniel Penalva <[email protected]> wrote: > >> Hi >> >> Iam trying to use this interface, but got a error when encapsulated the >> functions inside another, eg: >> >> void f(igraph_t g, double prickles){ >> igraph_real_t good = prickles; >> SETGAN(&g, "food", good); >> } >> >> got a error: >> >> vector_ptr.c:258: igraph_vector_ptr_size: Assertion `v != ((void *)0)' >> failed. >> >> any hint ? thank-you >> >> On Mon, Jan 12, 2015 at 2:25 PM, Daniel Penalva <[email protected]> wrote: >> >>> thank you >>> >>> On Mon, Jan 12, 2015 at 7:56 AM, Tamas Nepusz <[email protected]> wrote: >>> >>>> Hi, >>>> >>>> > How can i add properties to the nodes of a graph ? Iam using igraph >>>> with C >>>> > language. >>>> Please refer to http://igraph.org/c/doc/igraph-Attributes.html >>>> >>>> > I want to add: >>>> > >>>> > char * >>>> > doubles >>>> > int >>>> > >>>> > and access by the adjacency matrix structure. Is there any doc to >>>> this ? >>>> igraph does not use adjacency matrices to represent a graph. If you >>>> want to >>>> retrieve an attribute corresponding to an edge, you have to query the >>>> ID of the >>>> edge first using igraph_get_eid() and then retrieve the attribute of >>>> interest >>>> using igraph_cattribute_EAN() for numeric attributes, >>>> igraph_cattribute_EAS() >>>> for string attributes, or igraph_cattribute_EAB() for booleans. >>>> >>>> -- >>>> T. >>>> >>>> _______________________________________________ >>>> 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 > >
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