def triangular_lower(self, k=0):
        return self._new_instance(sp.tril(self.matrix, k=k))
Displays the view data for the category with passed category id.
dataset/ETHPy150Open jimmycallin/pydsm/pydsm/indexmatrix.py/IndexMatrix.triangular_lower--crossover with--dataset/ETHPy150Open diefenbach/django-lfs/lfs/manage/categories/view.py/category_view