remove unused dependencies (#800)

Author: pplonski

requirements.txt

@@ -11,8 +11,6 @@ matplotlib>=3.2.2
 dtreeviz>=2.2.2
 shap>=0.42.1
 seaborn>=0.11.1
-wordcloud>=1.8.1
-category_encoders>=2.2.2
 optuna-integration>=3.6.0
 mljar-scikit-plot>=0.3.11
 markdown

supervised/preprocessing/eda.py

@@ -14,7 +14,6 @@ class EncodingSelector:
 
     @staticmethod
     def get(X, y, column):
-        # return PreprocessingCategorical.CONVERT_LOO
         try:
             unique_cnt = len(np.unique(X.loc[~pd.isnull(X[column]), column]))
             if unique_cnt <= 20:

supervised/preprocessing/encoding_selector.py

@@ -202,8 +202,7 @@ def fit_and_transform(self, X_train, y_train, sample_weight=None):
 
         for convert_method in [
             PreprocessingCategorical.CONVERT_INTEGER,
-            PreprocessingCategorical.CONVERT_ONE_HOT,
-            PreprocessingCategorical.CONVERT_LOO,
+            PreprocessingCategorical.CONVERT_ONE_HOT
         ]:
             cols_to_process = list(
                 filter(