from scipy.stats import spearmanrdef spearmancorr(x,y): rho,pval = spearmanr(x,y,axis=0) return rho * (-1)from sklearn.neighbors import NearestNeighborsnbrs = NearestNeighbors(n_neighbors=4,algorithm='ball_tree',metric=spearmancorr)nbrs.fit(train)dist,ind = nbrs.kneighbors(test)SystemError Traceback (most recent call last)<ipython-input-11-f04b508b1263> in <module>() 5 for i in range(1): 6 nbrs = NearestNeighbors(n_neighbors=4,metric=spearmancorr)----> 7 nbrs.fit(train) 8 dist,ind = nbrs.kneighbors(test) 9 print "for: " + funcs[i]C:\Users\AppData\Local\Enthought\Canopy\User\lib\site-packages\sklearn\neighbors\base.pyc in fit(self,X,y) 797 or [n_samples,n_samples] if metric='precomputed'. 798 """--> 799 return self._fit(X)C:\Users\AppData\Local\Enthought\Canopy\User\lib\site-packages\sklearn\neighbors\base.pyc in _fit(self,X) 238 self._tree = BallTree(X,self.leaf_size,239 metric=self.effective_metric_,--> 240 **self.effective_metric_params_) 241 elif self._fit_method == 'kd_tree': 242 self._tree = KDTree(X,SystemError: NulL result without error in PyObject_Call@H_403_4@解决方法 这似乎是在sklearn 0.14.1之前发生的错误.尝试升级到更高版本或最新的0.18.1版本.
请参阅问题#2878和#3032.
@H_403_4@ @H_403_4@ @H_403_4@ @H_403_4@ 总结以上是内存溢出为你收集整理的python – 使用Spearman与Sklearn KNN的相关性进行模式匹配全部内容,希望文章能够帮你解决python – 使用Spearman与Sklearn KNN的相关性进行模式匹配所遇到的程序开发问题。
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