KevinFasusi/supplychainpy

AHP and quantitative criteria

labuzm opened this issue · 3 comments

labuzm commented

Hello, I'm wondering if it's possible to compute AHP with only qualitative criteria? I have tried to omit 'quantitative_criteria' parameter or set it to empty tuple, but in both cases program crashes. Any help would be appreciated.

KevinFasusi commented

Hi @labuzm,

Can you please give me an example, preferably with a code snippet, of what you mean by using only 'qualitative_criteria' ? Thank you.

labuzm commented

Hmm I wasn't right, setting quantitative_criteria to empty tuple works.

See line:
https://github.com/KevinFasusi/supplychainpy/blob/master/supplychainpy/bi/_analytical_heirachy_process.py#L40

The default value for quantitative_criteria argument is set to None which is I believe the reason why below code crashes:
https://gist.github.com/labuzm/e25374b86385d9fed0cd43b4ffdee84c

How about setting default value to empty tuple?

  • 👍1
KevinFasusi commented

@labuzm okay. Yep, I will see if I can change it to an empty tuple in the next release or highlight in the docs that you need to set the qualitative_criteria to an empty tuple. Thanks for raising the issue.