擅长:python、mysql、java
<p>而不是:</p>
<pre><code>X_train, y_train, X_valid, y_valid = train_test_split(y,X,test_size=.2, train_size=.8)
</code></pre>
<p>写:</p>
<pre><code>x_train,x_valid,y_train,y_valid= train_test_split(x,y,test_size=0.2)
</code></pre>
<p>然后使用:</p>
<pre><code>from xgboost import XGBRegressor
my_model = XGBRegressor(n_estimators=100)
my_model.fit(x_train, y_train)
</code></pre>