[fix] fix quantized training (fixes #5982) (fixes #5994) #6092
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shiyu1994
requested review from
guolinke,
jameslamb and
jmoralez
as code owners
guolinke
approved these changes
Sep 12, 2023
jameslamb
changed the title
jameslamb
approved these changes
Sep 12, 2023
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lightgbm.basic.LightGBMError: Check failed: (best_split_info.left_count) > (0) |
This was referenced Oct 30, 2023
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This pull request has been automatically locked since there has not been any recent activity since it was closed. To start a new related discussion, open a new issue at https://github.com/microsoft/LightGBM/issues including a reference to this. |
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This is to fix bugs in the CPU version of quantized training. I just missed some code when merging from https://github.com/shiyu1994/LightGBM/tree/cdd3bbddb02559a9589095220c84c55b48dffac4, which causes serious bugs.
Sorry for merging the quantized training PR too hasty without a careful check.
I've tested and this PR should fix #5982 and #5994, and probably #5868 (which needs to be confirmed by the results from test_dask.py in ci jobs).