v0.2.7rc2 - LightGBM Scorecard Support (RC - Complete)

🧪 Release Candidate: LightGBM Scorecard Support (Complete)

Note: This supersedes v0.2.7rc1 which had an incomplete squash merge.

✨ What's New

• LightGBM Scorecard: Complete implementation of scorecard functionality
  • ✅ create_points() with use_base_score parameter
  • ✅ predict_score() and predict_scores()
  • ✅ Proper base score normalization
• Critical Bug Fix: Fixed leaf ID mapping (55% Gini improvement: 0.40 → 0.90)
• Full Documentation: Examples and getting-started notebook

📊 Performance

• Scorecard Gini: 0.9020
• Model Gini: 0.9021
• All 106 tests passing ✅

📦 Installation

pip install xbooster==0.2.7rc2

🤝 Feedback Welcome!

This is a release candidate - please test and report any issues.

🙏 Contributors

• @RektPunk for the initial LightGBM implementation (PR #8)

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Full Changelog: v0.2.7a2...v0.2.7rc2