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Mafalda N avatar image
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Mafalda N asked tannerp commented

Dempirical distribution problem choosing the same value

dempirical.jpg

Hi!

I'm using the dempirical distribution for the processing time of an activity. The percetages sum up to 100. But it seems that only the highest number is always beeing chosen for the processing time (it is not the heighest percentage).

Thanks for the help!

FlexSim HC 5.3.0
percentagesdempirical distributionsame value
dempirical.jpg (57.2 KiB)
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5 |100000

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tannerp avatar image tannerp commented ·

@Mafalda N,

Could you post your model or a smaller re-creation of your model so that we can identify what might be causing the issue? The picture is nice, but doesn't quite give us all the information we need.

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Mafalda N avatar image Mafalda N tannerp commented ·

Sure! I've made some changes in between. I started using continuous distributions, because I didn't manage to make the simulation run properly with the empirical ones. So now you will see the process time in the acitivity exams with continous distributions. But you can still the empirical distributions in the global table. I would like to be able to implement them

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Ben Wilson avatar image Ben Wilson ♦♦ Mafalda N commented ·

Hi @Mafalda N,

There doesn't appear to be a sample model attached. Did you mean to attach one?

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Matthew Gillespie avatar image
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Matthew Gillespie answered

The first column of your table is storing the numbers as text data instead of number data. Right click on the header for the first column ("Col 1") and select Assign Number Data.


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Cliff King avatar image
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Cliff King answered

As you can see from the following screen capture showing the results of a simulation run of the attached test model, the dempirical distribution can successfully be used to model an activity process time. I would still suggest a continuous distribution or use of the cempirical distribution instead. I'm not sure why you had issues with your model, but until you post your model, we're not going to be able to tell.

dempirical-process-time-test.fsm


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