BernObsModel.py 文件源码

def _E_logphiT(self, k=None):
        ''' Calculate transpose of expected phi matrix

        Important to make a copy of the matrix so it is C-contiguous,
        which leads to much much faster matrix operations.

        Returns
        -------
        ElogphiT : 2D array, vocab_size x K
        '''
        if k == 'all':
            dlam1T = self.Post.lam1.T.copy()
            dlambothT = self.Post.lam0.T.copy()
            dlambothT += dlam1T
            digamma(dlam1T, out=dlam1T)
            digamma(dlambothT, out=dlambothT)
            return dlam1T - dlambothT
        ElogphiT = self._E_logphi(k).T.copy()
        return ElogphiT