Python walidacyjny krzyżów losowych
from sklearn.ensemble import RandomForestClassifier
from sklearn.model_selection import cross_val_score
import numpy as np
clf = RandomForestClassifier() #Initialize with whatever parameters you want to
# 10-Fold Cross validation
print np.mean(cross_val_score(clf, X_train, y_train, cv=10))
Plif Plouf