Add batch explanations and summary

[ruthraguru248]

Add batch explanations and summary

Closes #2

Summary

• Add support for explaining multiple instances with instances=
• Support DataFrames, NumPy arrays, and lists of row indices
• Add summarize() to produce a DataFrame of explanation results
• Include prediction, target, top-3 features, attributions, and consensus agreement
• Add tests for batch explanations and summarization

Testing

• 96 tests passed
• git diff --check passes

[adaumsilva]

Thanks for adding batch explanations and summarization @ruthraguru248 ! I verified DataFrame, NumPy-array, and row-index inputs, empty batches, and summaries for explanations with fewer than three features. Existing single-instance and global behavior remains intact.

All 96 tests pass locally, and all nine CI checks pass. No blocking code issues found—approved.

Please also add the short README example requested in #2, showing explain(..., instances=...) followed by summarize(explanations), so users can discover the new API.

[ruthraguru248]

Hi @adaumsilva, I’ve added the requested README example and resolved the README conflict. All CI checks are passing. Could you please re-review the PR?

[adaumsilva]

Solid work @prannoydidymus !

[ruthraguru248]

Thank you sir ! Glad to contribute to the project.

[prannoydidymus]

Thank you so much @adaumsilva , It was a plesure working with you.