def perimeter(self, **kwargs):
        return self._distance_attribute('perimeter', None, **kwargs)
Return a vector composed of elements on the matrix diagonal
dataset/ETHPy150Open CollabQ/CollabQ/vendor/django/contrib/gis/db/models/query.py/GeoQuerySet.perimeter--crossover with--dataset/ETHPy150Open sunlightlabs/clearspending/completeness/statlib/matfunc.py/Matrix.diag