Python EOQ.optimal_cycle_time Examples

Example #1

def test_optimal_cycle_time_calculates_correctly():
    import math
    demand = get_demand()
    raw_costs = get_raw_costs()

    t_star = EOQ.optimal_cycle_time(raw_costs=raw_costs, demand=demand)

    assert t_star == math.sqrt((2 * raw_costs.ordering_cost) /
                               (demand.quantity * raw_costs.holding_cost))

Example #2

File: week08_pp01.py Project: rickhaffey/supply-chain-python

def part3():
    d = Demand(240, 'M')
    rc = RawCosts(50.0, 100.0, 0.01, holding_time_unit='M')
    Q = EOQ.optimal_order_quantity(rc, d)
    print(Q)

    T = EOQ.optimal_cycle_time(rc, d)
    print(T)

    print(T * 4)

Example #3

def test_optimal_cycle_time_with_demand_zero_raises():
    with pytest.raises(ValueError):
        EOQ.optimal_cycle_time(raw_costs=get_raw_costs(),
                               demand=get_demand(quantity=0))

Example #4

def test_optimal_cycle_time_with_missing_demand_raises():
    with pytest.raises(ValueError):
        EOQ.optimal_cycle_time(raw_costs=get_raw_costs(), demand=None)

Example #5

def test_optimal_cycle_time_with_holding_cost_zero_raises():
    with pytest.raises(ValueError):
        EOQ.optimal_cycle_time(raw_costs=get_raw_costs(holding_rate=0.0),
                               demand=get_demand())

Example #6

def test_optimal_cycle_time_with_missing_raw_scores_raises():
    with pytest.raises(ValueError):
        EOQ.optimal_cycle_time(raw_costs=None, demand=get_demand())