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feature_cols = feature_df[2].values  #dataframe 2. sütundaki verileri Onehot encodinge çevireceğiz.
# =============================================================================
# PREPROCESSING
from sklearn import preprocessing
le = preprocessing.LabelEncoder()
feature_cols2 = le.fit_transform(feature_cols)
ohe = preprocessing.OneHotEncoder()
feature_cols2 =ohe.fit_transform(feature_cols).toarray()