model.classes_ is an empty list for classification problem

[muggle14]

Problem: model.classes_ is an empty list for classification problem
catboost version: 0.16.5
Operating System:
CPU: Linux

GPU:

catboost_classes_issue.pdf

Please help

[annaveronika]

This looks like a bug, thanks for reporting it. We are looking into this now.

[muggle14]

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________________________________ From: annaveronika <notifications@github.com> Sent: Friday, September 6, 2019 5:42:57 PM To: catboost/catboost <catboost@noreply.github.com> Cc: Himanshu Chaturvedi <h.chaturvedi14@outlook.com>; Author <author@noreply.github.com> Subject: Re: [catboost/catboost] model.classes_ is an empty list for classification problem (#984) This looks like a bug, thanks for reporting it. We are looking into this now. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub<#984?email_source=notifications&email_token=AG6Q6OW2XMBFE26MFPTYV3DQIKCBDA5CNFSM4IT3YULKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD6DMVGY#issuecomment-528927387>, or mute the thread<https://github.com/notifications/unsubscribe-auth/AG6Q6OQX6CC2O2QWG43TXXDQIKCBDANCNFSM4IT3YULA>.

[annaveronika]

Current status:
We have fixed most of the problems here. One remaining problem is that if you have binary classification, you will have classes_ equal to 0, 1 independant from what were the correct classes.
But classes_ is not empty, is correct always for multiclass and has always correct dimension.
This fixes will be out in our next release catboost 0.18

[andrey-khropov]

Fixed by commit 480753c. Will be on pypi in the next release.

[andrey-khropov]

Released in r0.20.2.