topic Re: How to choose random slot out of available slots everyday? in FlexSim Forum

How to choose random slot out of available slots everyday?

rajankur6494 — Fri, 13 May 2022 11:16:10 GMT

[ FlexSim 21.0.10 ]

Hi Team,

I have 10 arrival slots available as below:

How to choose 5 slots randomly daily basis?

Thank you!

RandomSlotSelection.fsm

Re: How to choose random slot out of available slots everyday?

jonah_kendellR47TC — Fri, 13 May 2022 19:29:36 GMT

The attached file uses a Global Table to evaluate Arrival and Departure times for each token. First, change the Source quantity to produce the total number of items to be delivered that day (5). The Assign Labels activity does 5 things:

1. Assigns a random Label to the token (1-10)

2. Looks at the Global table to find the Arrival/Departure times

3. Converts both Arrival and Departure times into seconds

4. Calculates correct arrival time in the model

5. Calculates Processing time (between arrival and departure)

The first delay activity waits for each arrival time to be reached (DelayTime for each). The second delay lasts for the Processing Duration.

Does this answer your question?

RandomSlotSelection_Solution2.fsm

Re: How to choose random slot out of available slots everyday?

kavika_faleumu — Fri, 13 May 2022 21:00:09 GMT

Here's another possibility with custom code. In the source activity, we set a label "keep". At the beginning of each cycle, we shuffle an array with possible paths and then assign them to each token based upon it's index. This code can be found in the Source activity under the Custom Code value.test1.fsm

Re: How to choose random slot out of available slots everyday?

rajankur6494 — Sun, 15 May 2022 02:16:32 GMT

I couldn't open the model since I am using version 21.1.5.

Re: How to choose random slot out of available slots everyday?

rajankur6494 — Sun, 15 May 2022 02:24:54 GMT

Hi @Kavika F,

Thanks for your answer!

Since we are defining the array manually with 10 elements, I don't feel it is having scalability if we are changing number of slots.

Thank you!

Re: How to choose random slot out of available slots everyday?

jonah_kendellR47TC — Mon, 16 May 2022 15:42:50 GMT

Sorry about that. Here is some of the data I used in my example.

The Assign Labels Activity:

The DelayTime Custom Code:

/**Custom Code*/

Object current = param(1);

treenode activity = param(2);

Token token = param(3);

Variant assignTo = param(4);

string labelName = param(5);

treenode processFlow = ownerobject(activity);

DateTime dt = DateTime(token.ArrDateTime);

DateTime sdt = DateTime.compose(

Model.startDateTime.year,

Model.startDateTime.month,

Model.startDateTime.day

);

DateTime dt2 = dt - (Model.startDateTime - sdt);

return dt2;

The Model Layout:

And the Global Table:

Hope this helps.

Re: How to choose random slot out of available slots everyday?

kavika_faleumu — Mon, 23 May 2022 16:28:57 GMT

Did you want scalability? If so, please mention that in your original post next time. It will help us a lot in the future to answer your questions if you include all the details you have so we can accurately solve your problem instead of solving small portions at a time and jig-sawing them together.

Re: How to choose random slot out of available slots everyday?

Jeanette_Fullmer — Thu, 26 May 2022 21:18:44 GMT

Hi @Ankur A3, was one of Kavika F's or Jonah K's answers helpful? If so, please click the "Accept" button at the bottom of the one that best answers your question. Or if you still have questions, add a comment and we'll continue the conversation.

If we haven't heard back from you within 3 business days we'll auto-accept an answer, but you can always unaccept and comment back to reopen your question.