如何使用pandas创建交叉表来显示随机森林预测器的预测结果？

import pandas as pd
from sklearn.ensemble import RandomForestClassifier
from sklearn.model_selection import train_test_split

data = pd.DataFrame({'features': [1, 2, 3, 4, 5],
                     'target': [0, 1, 0, 1, 1]})

X_train, X_test, y_train, y_test = train_test_split(data['features'], data['target'], test_size=0.2, random_state=42)

rf = RandomForestClassifier()
rf.fit(X_train.values.reshape(-1, 1), y_train)

predictions = rf.predict(X_test.values.reshape(-1, 1))

cross_tab = pd.crosstab(index=y_test, columns=predictions, rownames=['Actual'], colnames=['Predicted'])
print(cross_tab)