这是我的代码:
mice=MICE(n_imputations=1, verbose=False, model=RandomForestRegressor())
df=pd.DataFrame(data=mice.complete(d), columns=d.columns, index=d.index)
一旦我将 scikit 估计器放入模型 = 中,它就会出错。它还与 XGBoost 存在错误。
这是错误消息:
TypeError Traceback (most recent call last)
<ipython-input-39-ad0d319d3712> in <module>()
4 mice=MICE(n_imputations=1, verbose=False, model=RandomForestRegressor())
5 d=data[country].select_dtypes(include=[np.float]).as_matrix()
----> 6 df=pd.DataFrame(data=mice.complete(d), columns=d.columns, index=d.index)
7 #df.plot(figsize=(10, 6))
/Users/Nicolas/anaconda2/lib/python2.7/site-packages/fancyimpute/mice.pyc in complete(self, X)
332 print("[MICE] Completing matrix with shape %s" % (X.shape,))
333 X_completed = np.array(X.copy())
--> 334 imputed_arrays, missing_mask = self.multiple_imputations(X)
335 # average the imputed values for each feature
336 average_imputated_values = imputed_arrays.mean(axis=0)
/Users/Nicolas/anaconda2/lib/python2.7/site-packages/fancyimpute/mice.pyc in multiple_imputations(self, X)
323 missing_mask=missing_mask,
324 observed_mask=observed_mask,
--> 325 visit_indices=visit_indices)
326 if m >= self.n_burn_in:
327 results_list.append(X_filled[missing_mask])
/Users/Nicolas/anaconda2/lib/python2.7/site-packages/fancyimpute/mice.pyc in perform_imputation_round(self, X_filled, missing_mask, observed_mask, visit_indices)
200 X_other_cols_observed,
201 column_values_observed,
--> 202 inverse_covariance=None)
203
204 # Now we choose the row method (PMM) or the column method.
TypeError: fit() got an unexpected keyword argument 'inverse_covariance'