Consultation about seed setting in uncertainty analysis in BioSTEAM

[zasddsgg]

Hello, could I ask you some questions about seed setting in uncertainty analysis in BioSTEAM. Thanks for your help. Wish you a good day.

1. Can 1234 in np.random.seed(1234) in https://biosteam.readthedocs.io/en/latest/tutorial/Uncertainty_and_sensitivity.html#Monte-Carlo:~:text=np.random.seed(1234) be changed to some other number, such as 1?

2. The evaluate_uncertainties of lactic acid (https://github.com/BioSTEAMDevelopmentGroup/Bioindustrial-Park/blob/master/biorefineries/lactic/analyses/1_uncertainties.py#L30) do not appear to execute random number. Should I set the random number np.random.seed(1234) when doing uncertainty analysis? If executed, can the number in np.random.seed() be set arbitrarily? When Monte Carlo is simulated 1000 times, is np.random.seed(1234) executed once for each simulation?

[yalinli2]

You don't need to set a random number see, or you can set it to whichever value you like, it's just a number to get consistent random numbers in generation of the uncertainty parameters.

[zasddsgg]

So when performing both uncertainty analysis and global sensitivity analysis in my own process, I don't need to add the code np.random.seed(1234), right?

[yalinli2]

Since you are asking this question, I sense that you don't know what seed is for. So I suggest you don't add that code.

[zasddsgg]

I got it. Thanks for your help again.