Expand description
Ordinal encoder: map string categories to integer indices.
Each column’s categories are mapped to integers 0, 1, 2, ... in
lexicographic order (matching scikit-learn’s OrdinalEncoder).
Unknown categories seen during
transform produce an error.
Structs§
- Fitted
Ordinal Encoder - A fitted ordinal encoder holding per-column category-to-index mappings.
- Ordinal
Encoder - An unfitted ordinal encoder.