Set labels by % is inaccurate

Question

question

rheem asked Dec 10 2023 at 12:29 AM rheem commented Dec 15 2023 at 11:29 PM

Set labels by % is inaccurate

Set labels by %.fsm Trying to set labels by percentage and get the exact percentage (80% & 20%) but never get it. Also, the throughput chart has 3 types instead of 2 , I don't know why. I was trying many times but never succeed. Please see attached

Any help or modify the model is appreciated.

Software Version:

FlexSim 23.2.2

set label set percentage

set-labels-by.fsm (72.8 KiB)

· 4

Joerg Vogel commented · Dec 10 2023 at 6:37 AM

@rheem, it is a desired feature to get a deviation if you use a statistical distribution. You get nearer to a ratio for millions of events.

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rheem Joerg Vogel commented · Dec 10 2023 at 2:39 PM

i was trying to change it but unable to get it work. Could you please modify the file and send it back to me if that possible. I will use it as reference for my project . Please see attached

Set labels by %.fsm

0 ·

set-labels-by.fsm (72.8 KiB)

Joerg Vogel rheem commented · Dec 10 2023 at 3:38 PM

@rheem, this is not my intention. Please describe, what your problem is! Maybe someone is able to help.

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Answer 1 · 2023-12-15T22:03:24Z

Phil BoBo answered Dec 15 2023 at 10:03 PM rheem commented Dec 15 2023 at 11:28 PM

Your Station19 and Station7 objects have an On Process Finish trigger that sets the item's Type label to a random number 1-3.

So any items that go to those stations have their type overridden as a random value uniformly distributed between 1 and 3.

Remove those Set Label triggers to fix your problem.

1702677726303.png (1.2 MiB)

· 1

Answer 2 · 2023-12-15T22:01:21Z

Jason Lightfoot answered Dec 15 2023 at 10:01 PM rheem commented Dec 15 2023 at 11:29 PM

You can only get an exact percentage that matches 80/20 split in multiples of 5 items. One way of making that happen for as few items as possible is to create a repeating schedule like this:

The reason you have 3 types is that Station7 and 19 are relabelling items from a uniform distribution:

Changed model attached.

set-labels-byPercent_jl.fsm

1702677427834.png (7.6 KiB)

1702677500619.png (10.2 KiB)

set-labels-bypercent-jl.fsm (72.3 KiB)

· 1

Answer 3 · 2023-12-10T06:53:47Z

Joerg Vogel answered Dec 10 2023 at 6:53 AM rheem commented Dec 15 2023 at 10:00 PM

Please look for answers, which eliminates deviations in a much smaller event amount like:

https://answers.flexsim.com/questions/73938/how-to-split-people-from-a-source-walk-to-two-diff.html

https://answers.flexsim.com/questions/116925/creating-labels-by-percentage-in-order.html

https://answers.flexsim.com/questions/80613/how-to-use-decision-point-to-split-32-between-2-co.html

· 1

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