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trouble with other datasets #4

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SadeghRahmaniB opened this issue Aug 6, 2017 · 2 comments
Open

trouble with other datasets #4

SadeghRahmaniB opened this issue Aug 6, 2017 · 2 comments

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@SadeghRahmaniB
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hello dear friend
when i changed the vrp dataset in your code, error occured for "heappush(self.chromosomes, (x.cost, x))" in cvrp_advancedga.py file that is "unorderable types: Solution() < Solution()"
i have to say that vrp file that i used, have same syntax with your file, and i download them from "http://neo.lcc.uma.es/vrp/vrp-instances/capacitated-vrp-instances/" and use "Set A" or "A-VRP".
also one time i created vrp file manually and again the same error occured.
how can i use other dataset in this code??
my python version is 3.4.0.
thank you.
@cmanny
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cmanny commented Aug 6, 2017

Hey,

Yes the problem you have been experiencing is a result of my lazy construction of the code to load in the VRP instance. It is hardcoded for a certain subset of VRP and does not allow all the parameters.

The data loading code can be found here

I can't say when I will be able to add this in correctly, however a quick search led me to this piece of code which seems to detail the correct steps required to load in the VRP file generally.

I will keep this in mind and try to get round to it, however, if you manage to fix it before, please make a PR and I'll update the repo with your changes!

@SadeghRahmaniB
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hello again dear friend
i check your CVRPInfo class step by step and almost i am certain that your code haven't any error
can you tell me the "heappush(self.chromosomes, (x.cost, x))" what exactly does?
x is some route and cost is some cost, so how they are pushed in chromosomes heap??
and if you have any more information, i will be thankful to you if tell me that.

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@cmanny @SadeghRahmaniB