PuLP 目标函数未在 lpSum 中包含常数

Question

Any idea why the following objective function doesn't include the -5000 in its formulation?

prob += lp.lpSum([-5000 + price_today_d[i] * ticker_vars[i] for i in ticker_list]), 'Total Cost'

Result:

Total_Cost: 0.82 ticker_A + 27.55 ticker_B
 + 32.73 ticker_C + 30.14 ticker_D + 26.55 ticker_E

Answer 1

By default PuLP ignores constant values since they are not relevant for obtaining the optimal solution. You can always add it after solving.