acc python
时间: 2023-08-19 21:06:39 浏览: 59
在Python中,acc是指准确率(accuracy)。准确率是分类模型中常用的评估指标,表示模型在所有样本中正确分类的比例。在中的代码中,acc的计算方式为metrics.accuracy_score(y_test, y_pred),其中y_test是真实的标签,y_pred是模型预测的标签。该代码可以计算出模型在测试数据集上的准确率。中的代码段为:
```python
# 使用模型进行预测
y_pred = clf.predict(X_test)
# 计算模型评估指标
acc = metrics.accuracy_score(y_test, y_pred)
print('acc:', acc)
```
其中,`y_pred`是模型在测试数据集上的预测结果,`y_test`是真实的标签。`metrics.accuracy_score`函数用于计算准确率,将预测结果和真实标签作为参数传入即可计算出准确率。最后,用`print`函数将准确率打印出来。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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