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a-mitani/rf_interaction.py

Created July 23, 2020 02:28
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用意したトイデータを学習＆予測
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rf_interaction.py
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2)
lr = LinearRegression().fit(X_train, y_train)
y_pred_lr = lr.predict(X_test)
rf = RandomForestRegressor().fit(X_train, y_train)
y_pred_rf = rf.predict(X_test)
# 精度評価
fig, ax = plt.subplots()
ax.plot([-6, 6], [-6, 6])
ax.set_xlim([-6, 6])
ax.scatter(y_test, y_pred_lr, alpha=0.5, label='Linear Regression')
ax.scatter(y_test, y_pred_rf, alpha=0.5, label='Random Forest')
ax.legend()
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