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Titanic 2 - New try In [1]: % matplotlib inline import os import pandas as pd import matplotlib.pyplot as plt import numpy as np from sklearn.model_selection import train_test_split from sklearn.model_selection import StratifiedShuffleSplit from pandas.plotting import scatter_matrix import seaborn as sns from sklearn.impute import SimpleImputer from sklearn.preprocessing import OneHotEncoder from sklearn.base import BaseEstimator , TransformerMixin from sklearn.pipeline import Pipeline from sklearn.preprocessing import StandardScaler from sklearn.compose import ColumnTransformer from sklearn.linear_model import LogisticRegression from sklearn.tree import DecisionTreeRegressor from sklearn.ensemble import RandomForestRegressor from sklearn.metrics import mean_squared_error from sklearn.model_selection import cross_val_score from sklearn.model_selection