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Allow non integer categories #18

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Merged
ysims merged 1 commit into from
Jul 31, 2026
Merged

Allow non integer categories #18

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8 changes: 3 additions & 5 deletions ecosci/data/preprocessing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -111,15 +111,13 @@ def encode_labels(y, labels: List[str], problem_type: str = "classification"):
"""
from sklearn.preprocessing import LabelEncoder
import numpy as np
import pandas as pd
from pandas.api.types import is_numeric_dtype


label_encoders = {}
label_classes_dict = {}

if len(labels) == 1:
# Single output: maintain backward compatibility
if problem_type == "classification" and not is_numeric_dtype(y):
if problem_type == "classification":
label_encoder = LabelEncoder()
y_encoded = label_encoder.fit_transform(y)
label_encoders[labels[0]] = label_encoder
Expand All @@ -131,7 +129,7 @@ def encode_labels(y, labels: List[str], problem_type: str = "classification"):
# Multi-output: encode each column separately
y_encoded = []
for col in labels:
if problem_type == "classification" and not is_numeric_dtype(y[col]):
if problem_type == "classification":
label_encoder = LabelEncoder()
y_col_encoded = label_encoder.fit_transform(y[col])
label_encoders[col] = label_encoder
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