lookup

ParamDictND.lookup(*key)

Get the parameter value for the specified key, or zero if it is not found.

Parameters:

*keykey

Returns:

int or float

Examples

>>> demand = ParamDictND({('A', 'B'): 10, ('B', 'C'): 20, ('A', 'C'): 15, ('C', 'A'): 16})
>>> demand.lookup('A', 'B')
10
>>> demand.lookup('B', 'A')
0