Machine Learning, Data Science, Python, Classification.
means = train.groupby(‘Title’).Survived.mean() train[‘Title_mean_target’] = train[‘Title’].map(means) test[‘Title_mean_target’] = test[‘Title’].map(means) means = train.groupby(‘Embarked’).Survived.mean() train[‘Embarked_mean_target’] = train[‘Embarked’].map(means) test[‘Embarked_mean_target’] =