Voting classifier in Alteryx

Question

Hi All,

I have an ensemble model use case where Voting Classifier model needs to be used ( hard/soft voting).

Is there any predefined model or macro in Alteryx that can be used?

For now I have implemented in python code. Could someone share any steps on how to save the python model as pickle file and apply on new data instead of training the model repetitively?

I am new to Alteryx. Would appreciate if any sample workflows with python deployment is available.

Thanks in advance

AddyGR · Answer

Thank you for your reply! I will check this out.

I still have a question though. In my workflow I read the path in which workflow is saved and I create pickle files in same folder. This works in local. Now when I save this workflow to gallery collections, how should I give a folder path

AmirSems_charter · Answer

That is a great question and that depends 100% on the version of Python/Miniconda you have running.

Did you wonder why you did not have to pip install anything? It was not because it was magic it is because it is already on your virtual environment. With that said you can navigate to Bin in Alteryx and check out what you have on their or reach out to Alteryx to give you that info.

So case in point let me show you my version of scikit learn on my designer...

So case in point the KNN Imputer cant run on my version. I could use simple imputer.

Well i hope this answers your question. Good luck fellow Python user!

AddyGR · Answer

Thank you for your reply!

Yes. My implementation is similar to https://scikit-learn.org/stable/modules/generated/sklearn.ensemble.VotingClassifier.html

I have written a python code in Alteryx Python tool to serialize into pickle file & save it in the local folder that has the Alteryx workflow (Reference link: Embedding a Model in a Workflow with a Python Tool - Alteryx Community) and I am able to call it back on new data &predict the results and write it back as a data frame.

I would like to know if this will work in the same way when placing in Alteryx gallery (my company's internal gallery).