应如何解决mutual_info_score() takes 0 positional arguments but 2 were given这个报错问题
时间: 2024-09-19 18:11:25 浏览: 40
这个错误`mutual_info_score() takes 0 positional arguments but 2 were given`通常表示你在调用`mutual_info_score()`函数时给出了多余的参数,而它实际上只需要接收两个参数。`mutual_info_score()`用于计算两个变量之间的互信息,需要输入两组数值向量。
在你的上下文中,可能是你需要传入`X`和`Y`两个特征的数据作为参数。确保这两个变量已经分别被提取出来,并且是正确的numpy数组形式。如果你之前是在循环中计算的,检查一下这部分的代码是否按照预期只传入了两组特征的值。
例如,假设你在循环里是这样写的:
```python
mi = mutual_info_score(df[numeric_features[i]], df[numeric_features[j]])
```
这里应该只调用一次`mutual_info_score()`,并且把完整的列转换成数组后再计算:
```python
all_mutual_info = []
for i in range(len(numeric_features)):
feature_i_values = df[numeric_features[i]].dropna().values
for j in range(i + 1, len(numeric_features)):
feature_j_values = df[numeric_features[j]].dropna().values
mi = mutual_info_score(feature_i_values, feature_j_values)
all_mutual_info.append((numeric_features[i], numeric_features[j], mi))
```
确保每次循环内部都只有一个`mutual_info_score()`调用,而且它的参数是对应特征的完整值数组。
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