Re: [igraph] problems with import of Pajek .net file

[Gábor Csárdi]

On Wed, Aug 11, 2010 at 2:44 PM, Martin Tomko <address@hidden> wrote:
> Hi All,
> I have no idea what changed, but now it all works. It seems that I had to
> exit R and reload it, not just reload the source, after I replaced the input
> file. Is there some caching going on?

Certainly not by igraph. If you open the file in R, replace it, and
then read from it in R, AFAIK R is still reading the old contents.
(Although this might be platform dependent and I don't know which
platform you are using.)

Gabor

> Apologies for wasting your time, and thanks a lot!
>
> Martin
>
> On 8/11/2010 2:14 PM, Gábor Csárdi wrote:
>>
>> Works fine on OSX as well, igraph 0.5.4, R 2.11.1.
>>
>> FYI,
>> Gabor
>>
>> On Wed, Aug 11, 2010 at 2:07 PM, Tamas Nepusz<address@hidden>  wrote:
>>
>>>
>>> Hi again,
>>>
>>> It works for me in igraph 0.5.3 as well (R 2.11.0, igraph 0.5.3, Linux).
>>>
>>> --
>>> Tamas
>>>
>>> On Wed, Aug 11, 2010 at 12:20:23PM +0200, Martin Tomko wrote:
>>>
>>>>
>>>> Hi All,
>>>> I am experiencing a problem reading a pjek formatted graph (that I
>>>> output from my own conversion script). The graph opens fine in Pajek
>>>> itself.
>>>>
>>>> I get the following error:
>>>> Fehler in read.graph.pajek(file, ...) :
>>>>   At type_indexededgelist.c:245 : cannot add edges, Invalid vertex id
>>>>
>>>> It is a very simple graph with no fancy attributes, just :
>>>>
>>>> *Vertices 8309
>>>> 1
>>>> 2
>>>> 3
>>>> 4
>>>> 5
>>>> 6
>>>> ...
>>>> *Edges
>>>> 1 2
>>>> 1 7044
>>>> 10 985
>>>> 100 1901
>>>> ...
>>>>
>>>> I have output many other .net graphs and ingested them into igraph
>>>> without problems before, although from a different procedure and
>>>> input, so it must be something with the new input graph data I have,
>>>> I assume.
>>>>
>>>> I made sure that the number of vertices is correct, they are
>>>> numbered from 1, sequentially, and ordered in the output, and I also
>>>> ordered the edges. I have no idea what could be the problem.
>>>> Is there a way to enable more verbose debug output from igraph in R,
>>>> so that I see which vertex number is the problem?
>>>>
>>>> the two graphs are available here, if anyone wants to try...:
>>>> http://www.geo.uzh.ch/~mtomko/myoutput.net
>>>> http://www.geo.uzh.ch/~mtomko/pajektest.net
>>>>
>>>> Thanks
>>>> Martin
>>>>
>>>>
>>>> _______________________________________________
>>>> igraph-help mailing list
>>>> address@hidden
>>>> http://lists.nongnu.org/mailman/listinfo/igraph-help
>>>>
>>>
>>> _______________________________________________
>>> igraph-help mailing list
>>> address@hidden
>>> http://lists.nongnu.org/mailman/listinfo/igraph-help
>>>
>>>
>>
>>
>>
>
>
> --
> Martin Tomko
> Postdoctoral Research Assistant
>
> Geographic Information Systems Division
> Department of Geography
> University of Zurich - Irchel
> Winterthurerstr. 190
> CH-8057 Zurich, Switzerland
>
> email: address@hidden
> site:   http://www.geo.uzh.ch/~mtomko
> mob:    +41-788 629 558
> tel:    +41-44-6355256
> fax:    +41-44-6356848
>
>



-- 
Gabor Csardi <address@hidden>     UNIL DGM