What are standarization and normalization? Test with iris data set in Scikit-learn
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| # apply StandardScaler for iris data set, this is z-score normalization | |
| from sklearn.preprocessing import StandardScaler | |
| df_s = df.copy() | |
| std_scaler = StandardScaler() | |
| df_s.iloc[:, [0, 1, 2, 3]] = std_scaler.fit_transform(df_s.iloc[:, [0, 1, 2, 3]]) | |
| df_s.head() |
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