@property
    def theta(self):
        if self._theta is None:
            self._theta =  self.model.top_doc / self.model.top_doc.sum(0)
        return self._theta
Returns the topic by document matrix from the model as a right
dataset/ETHPy150Open inpho/vsm/vsm/viewer/ldacgsviewer.py/LdaCgsViewer.theta