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LightGBM
jameslamb
jameslamb commented Jan 27, 2021

Summary

mypy shows some issues in LightGBM's Python package.

mypy --ignore-missing-imports python-package/
18 errors in 4 files (click me)
python-package/lightgbm/compat.py:12: error: Name 'Series' already defined (possibly by an import)
python-package/lightgbm/compat.py:17: error: Name 'DataFrame' already defined (possibly by a
msbuild
omajid
omajid commented Jan 28, 2021

Issue Description

msbuild's code is open source under the MIT license. This allows anyone to examine, modify and distribute the sources (among other things). However, the source code repository includes a documentation file that has a "Microsoft Confidential" notice:

https://github.com/dotnet/msbuild/blob/master/src/Shared/Shared%20Code.doc

I suspect this is a mistake since there i

ChumpChief
ChumpChief commented Dec 14, 2020

With #4556 we now have localized eventing on subdirectories ("containedValueChanged"). We should consider using these events in our examples where we currently do path inspection on the "valueChanged" event.

Based on a quick search, looks like the following might benefit:

  • examples\data-objects\primitives\src\main.tsx
  • examples\data-objects\todo\src\TextList\TextListView.tsx
  • [
mmlspark
brunocous
brunocous commented Sep 2, 2020

I have a simple regression task (using a LightGBMRegressor) where I want to penalize negative predictions more than positive ones. Is there a way to achieve this with the default regression LightGBM objectives (see https://lightgbm.readthedocs.io/en/latest/Parameters.html)? If not, is it somehow possible to define (many example for default LightGBM model) and pass a custom regression objective?

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