Help with PULSE TRAIN and random variable

[Nub_User]

Dear experts,

I need model a variable that maintains a constant value (but obtained from a random variable) that lasts for 365 days and repeats periodically every 365 days.

What I want to simulate is a constant but random value every 365 days, and that the function keeps that value constant for 365 days.

I used a function based on PULSE TRAIN and RANDOM PINK NOISE, but I get a continuous random function while I need a discrete function lasting 365.

Could you please help me with that?

Thank you very much.

[tomfid]

Try this instead ...

PULSE_test 2.mdl

(2.16 KiB) Downloaded 289 times

You can also use SAMPLE IF TRUE for this (though I think it's not available in all versions).

[Nub_User]

Thank you very much for the solution @tomfid!

Iam working with PLE+ version. SAMPLE IF TRUE is available in these version. Conceptually, how can I use it?

[Administrator]

https://www.vensim.com/documentation/fn ... _true.html

[Nub_User]

Thank you @administrator.
I read the syntax and help from the documentation Help. But I was referring to how the recommendation can be implemented for the specific problem I raised.

[Administrator]

SAMPLE IF TRUE will hold a value until something is "true". So create a variable that equals 1 every 365 days, and use that in the call to SAMPLE IF TRUE.

[Nub_User]

thank you very much @Administrator