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Re: [stem-dev] Antw: Pajek graph- specifying dates and rates

Hi Marcel,

Thanks for taking a look! If you’re able to fix it then that would be amazing. Let me know how you get on and if there’s anything I can do to help.

Best wishes,
Emily 

> On 27 Sep 2018, at 17:49, Marcel Fuhrmann <Marcel.Fuhrmann@xxxxxxxxxxx> wrote:
> 
> Hi Emily, 
> 
> i looked into that problem.
> 
> After importing some test pajek-files of my own, i think you are correct that, contrary to what the wiki tells us, the
> feature of using the optional parameters is simply not implemented, yet.
> 
> If i am not mistaken, the import function just ignores all optional parameter entries. We'll see if we can do something
> about that.
> 
> Cheers,
> Marcel
> 
> 
> 
> //// Wissenschaft im Dienst des Menschen ////
> 
>>>> Emily Nixon <emily.nixon@xxxxxxxxxxxxx> 21.09.2018 17:32 >>>
> Hi all,
> 
> 
> I'm now in the final year of my PhD and realised that I urgently need to make a change in my model by using a feature
> in the pajek graphs that I haven't before.
> 
> My pajek graphs so far have never included the optional parameters specified on the wiki:
> 
> 
> Optional parameters:
> 
>  *   date - specification a of date at which the migration rate is different from the standard value specified in the
> obligatory parameters. ISO 8601 standard is used (YYYY-MM-DD). This parameter may be used repeatedly.
>  *   rate - migration rate for the specified date. This parameter may be used repeatedly. The associated date is the
> last mentioned one.
> 
> https://wiki.eclipse.org/Importing_a_Pajek_Graph 
> 
> 
> I've made a dummy pajek graph to test using these optional parameters. However, even though I've specified them, they
> don't seem to be implemented.
> 
> 
> I first noticed this in my Marketdummy1 scenario, where I specified much higher rates than the baseline rate on
> particular dates (this is what I'm planning on doing in my model). I would expect that on the specified dates, more
> sheep would move between certain nodes than on a normal date, but this didn't seem to be happening.
> 
> 
> In Marketdummy2A, I've tried specifying really high rates (e.g. 1 which I think is the maximum), just on the specified
> days and then have no baseline rate. If it was working, then I would expect there to only be movements on the specified
> dates. However, there are no movements between nodes at all.
> 
> 
> In case the value "1" was too high to use multiple times, I made the baseline zero again and then this time had a rate
> of 0.2 on the specified dates (I haven't attached this model, but I've attached the spreadsheet Marketdummy3). There
> were still no movements between nodes.
> 
> 
> I also tried selecting the options "use global Region Names" and "Move Nodes to Containers" when importing the pajek
> graph into STEM, just in case this was why the specified dates and rates were not taken into account. Again, no luck.
> 
> 
> If anyone can help, then please let me know! I think this might be a bug, but I thought I would check with you before
> opening one. I have attached the project I was using and the spreadsheet I used to make the pajek graph. This is the
> spreadsheet that can be downloaded from the wiki and used to produce a net file in Libre Office). I have also attached
> the net files produced.  https://wiki.eclipse.org/Importing_a_Pajek_Graph 
> 
> 
> Best wishes,
> 
> 
> Emily
> 
> 
> 
> 
> Emily Nixon
> PhD Student
> 
> Demonstrator
> 
> 
> School of Biological Sciences
> University of Bristol
> Bristol Life Sciences Building
> 24 Tyndall Avenue
> Bristol
> BS8 1TQ
> Tel +44 (0)117 394 1389
> 
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