Solving of linear programming problems with KNIME

Hello KNIMERs,

Is KNIME able to solve linear programming problems?

For example transportation problem and assignment problem.

Thanks for your feedbacks in advance!

Roland

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Hello Roland,

KNIME does not provide out of the box features for typical solving algorithms. However, you can always use a python node to do basically everything what you’d otherwise do in a jupyter notebook.

So if you have a python library which offers a nice solver, then you can integrate it also with KNIME in a python code node.

Cheers, Christian

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Hello Christian,

thanks for your feedback. In this case I have to study python coding.

Is it possible to implement R in KNIME too?

Roland

Hi @rolandnemeth

Yes you can integrate R. See e.g https://nodepit.com/category/scripting/r and the KNIME Hub

Gr.Hans

3 Likes

Hello @rolandnemeth,

here is guide that can help you integrate R with KNIME:

Br,
Ivan

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Tank you very much Ivan!

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Hi @giggo_m,

Is it possible to send into the python node vectors and matrix as flow variable into the Python Node?

Best Regards
Roland

I think the data types for flow variables are limited and cannot have vectors or matrices. You can, of course, create string representations and then parse them out again - this should work.

However, the question is why you would have to pass them along as flow variables and why you cannot use “normal” data connections?

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