求解答一下一个sklearn的问题。
```
用代码块功能插入代码,请勿粘贴截图
```python
for j in np.arange(1, 120, 1):
clf1_best = DecisionTreeClassifier(criterion = list(best_parameters1.values())[0],
n_estimators = j,
max_depth = list(best_parameters1.values())[1],
min_samples_split = list(best_parameters1.values())[2],
random_state = 0,
max_features = 'sqrt')
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