from sklearn.ensemble import RandomForestRegressor
from sklearn.metrics import r2_score, mean_absolute_error
import pandas as pd

# Données d'exemple
df = pd.DataFrame({
    'sma5': [1, 2, 3, 4, 5],
    'sma24': [2, 2, 2, 3, 4],
    'close': [100, 102, 101, 105, 108]
})
df['future_gain'] = (df['close'].shift(-1) - df['close']) / df['close']

X = df[['sma5', 'sma24']][:-1]
y = df['future_gain'][:-1]

model = RandomForestRegressor(n_estimators=200, random_state=42)
model.fit(X, y)
y_pred = model.predict(X)

print("R²:", r2_score(y, y_pred))
print("MAE:", mean_absolute_error(y, y_pred))
print("Prédictions :", y_pred)