from sklearn.preprocessing import StandardScaler
standardScaler=StandardScaler()
standardScale.fit(X_train)
X_train_standard=standardScale.transform(X_train)
lin_reg=LinearRegression()
lin_reg.fit_gd(X_train_standard,y_train)
from sklearn.linear_model import SGDRegressor
sgd_reg=SGDRegressor(n_iter=100)
sgd_reg.fit_gd(X_train_standard,y_train)
sgd_reg.score(x_test_standard,y_test)