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guofu 5109ac4eb3 Simplify pipeline with struct columns ... - Remove split_at_end parameter from pipeline.transform(), always return DataFrame - Add pack_struct parameter to pack feature groups into struct columns - Rename exporters: select_feature_groups_from_df -> get_groups, select_feature_groups -> get_groups_from_fg - Add pack_structs() and unpack_struct() helper functions - Remove split_from_merged() method from FeatureGroups (no longer needed) - Rename dump_polars_dataset.py to dump_features.py with --pack-struct flag - Update README with new CLI usage and struct column documentation Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>		2 days ago
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compare_predictions.py	Add configuration files and alpha158_beta pipeline	4 days ago
dump_features.py	Simplify pipeline with struct columns	2 days ago
extract_qlib_params.py	Extract RobustZScoreNorm parameters and add from_version() method	2 days ago
fetch_embeddings.py	Add configuration files and alpha158_beta pipeline	4 days ago
fetch_predictions.py	Add configuration files and alpha158_beta pipeline	4 days ago
generate_beta_embedding.py	Simplify pipeline with struct columns	2 days ago
generate_returns.py	Add configuration files and alpha158_beta pipeline	4 days ago
predict_with_embedding.py	Add configuration files and alpha158_beta pipeline	4 days ago