擅长:python、mysql、java
<p>由于新数组是从transform函数返回的,因此,我必须将其存储在同一个数组(X)中以更改值</p>
<pre><code> from sklearn.preprocessing import Imputer
imputer = Imputer(missing_values='NaN',strategy='mean',axis=0)
imputer = imputer.fit(X[:,1:3])
X[:,1:3]= imputer.transform(X[:,1:3])
</code></pre>