如scikit-learn文档中所述,如何在cv中使用TimeSeriesSplit

时间:2018-05-10 07:38:16

标签: scikit-learn cross-validation

tss = TimeSeriesSplit(max_train_size=None, n_splits=10)
l =[]
neighb = [1,3,5,7,9,11,13,12,23,19,18]
for k in neighb:
    knn = KNeighborsClassifier(n_neighbors=k, algorithm='brute')
    sc = cross_val_score(knn, X1, y1, cv=tss, scoring='accuracy')
    l.append(sc.mean())

尝试使用10倍TimeSeries Split,但在cross_val_score的文档中,我们需要传递交叉验证生成器或迭代。在将时间序列分成火车和测试数据到cv

后,我应该如何传递它

类型错误
 追溯(最近的呼叫最后)  in()

 14 for k in neighb:

 15     knn = KNeighborsClassifier(n_neighbors=k, algorithm='brute')

---> 16 sc = cross_val_score(knn,X1,y1,cv = tss,scoring ='accuracy')

 17     l.append(sc.mean())

 18 ~\Anaconda3\lib\site-packages\sklearn\cross_validation.py in cross_val_score(estimator, X, y, scoring, cv, n_jobs, verbose, fit_params, pre_dispatch)
1579年火车,测试,详细,无,    1580 fit_params)

- > 1581用于火车,在cv中测试)

1582返回np.array(得分)[:,0]

1583

TypeError:'TimeSeriesSplit'对象不可迭代

0 个答案:

没有答案
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