9. Life and Death

9.1. Dead units

Any group can be given a mask attribute that indicates which units are functional and which units are non-functional:

>>> G = dana.zero(5,'V')
>>> G.mask = np.ones(5,dtype=bool)
>>> G.mask[2] = False
>>> G.V = 1
>>> print G.V
[1. 1. -- 1. 1.]

9.2. Dead connections