space.py 文件源码

def pairwise_distances(self, X, Y=None, metric='cosine',
                           n_jobs=1, **kwds):

        if self.prenorm:
            if metric == 'cosine':
                return self._cosine_distances_prenorm(X, Y)
            else:
                raise Exception(
                    'Vectors are normalized and will work only with cosine.')

        return smp.pairwise_distances(X, Y, metric=metric,
                                      n_jobs=n_jobs, **kwds)