保存Pyomo模型变量

Question

I'm doing an optimization problem and after give the command: 我正在做一个优化问题，并给出命令后：

results = solver.solve(model,tee=True)

I will have all my variables solved inside the model object. 我将在模型对象内部解决所有变量。

There is a way to save and load this model object? 有没有一种方法可以保存和加载此模型对象？

Answer 1

The variables will be inside your "model" object, if you have a variable called "A": 如果您有一个名为“ A”的变量，则这些变量将在“模型”对象内：

model.A.value

will give you its value (or model.A[index].value if it is indexed) 将为您提供其值（如果已建立索引，则为model.A [index] .value）

If you just want to use the results later in your code just call the value when needed (as shown above) 如果您只想稍后在代码中使用结果，则在需要时调用该值（如上所示）
If you want to save them for later The best is to have a function that exports the results towards dictionaries, panda dataframes, and then you can save to txt, csv or excel files using pickle or pandas for excel. 如果要保存它们以备后用，最好的方法是将结果导出到字典，熊猫数据框，然后可以使用pickle或pandas保存为txt，csv或excel文件。
You can also save your entire model to a file using "cloudpickle" (it will however not work if you try to open it with a too different environment) 您也可以使用“ cloudpickle”将整个模型保存到文件中（但是，如果尝试在过于不同的环境中打开它，则将无法使用）