hmm_sparsity.py 文件源码

python
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项目:nelpy 作者: nelpy 项目源码 文件源码
def _within_event_incoherent_shuffle(self, kind='train'):
        """Time cycle on BinnedSpikeTrainArray, cycling only within each epoch.
        We cycle each unit independently, within each epoch.
        """
        if kind == 'train':
            bst = self.PBEs_train
        elif kind == 'test':
            bst = self.PBEs_test
        else:
            raise ValueError("kind '{}' not understood!".format(kind))

        out = copy.deepcopy(bst) # should this be deep?
        data = out._data
        edges = np.insert(np.cumsum(bst.lengths),0,0)

        for uu in range(bst.n_units):
            for ii in range(bst.n_epochs):
                segment = np.squeeze(data[uu, edges[ii]:edges[ii+1]])
                segment = np.roll(segment, np.random.randint(len(segment)))
                data[uu, edges[ii]:edges[ii+1]] = segment

        if kind == 'train':
            self.PBEs_train = out
        else:
            self.PBEs_test = out
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