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ban230 We used StandardScaler (in scikit-learn) for the KNN project. Answer the following questions: 1- What does StandardScaler do? 2- Why did we use it
ban230 We used StandardScaler (in scikit-learn) for the KNN project. Answer the following questions: 1- What does StandardScaler do? 2- Why did we use it for the KNN project? 3- Is it best practice to apply StandardScaler before or after splitting the data into training and test sets? Why
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