Search found 10 matches

by jie
Fri Nov 19, 2021 9:57 am
Forum: Vensim
Topic: DELAY1
Replies: 3
Views: 1072

Re: DELAY1

In fact, I want to know what the image produced after using the DELAY1 function is?
by jie
Fri Nov 19, 2021 6:17 am
Forum: Vensim
Topic: DELAY1
Replies: 3
Views: 1072

DELAY1

I would like to ask about the delay1 function. If the image produced by this function is the translation of the image, the maximum and minimum values are consistent? The maximum and minimum values of the image I got using this function in the model are inconsistent with those before the delay. I wou...
by jie
Tue Nov 16, 2021 9:56 am
Forum: Vensim
Topic: units check errors
Replies: 6
Views: 1551

Re: units check errors

Thank you, I will take this tutorial.
by jie
Tue Nov 16, 2021 6:51 am
Forum: Vensim
Topic: units check errors
Replies: 6
Views: 1551

Re: units check errors

Hello, do you mean that my DELAY1 function is wrong? Is it because my unit does not define synonyms? Can you tell me how to solve this unit error in the figure?
by jie
Mon Nov 15, 2021 11:12 am
Forum: Vensim
Topic: units check errors
Replies: 6
Views: 1551

units check errors

Hello, I want to ask what this unit error means?The error screenshot is in the attachment
by jie
Mon Nov 15, 2021 10:01 am
Forum: Vensim
Topic: cost
Replies: 8
Views: 1795

Re: cost

Ok I see, thank you very much for your patience.
by jie
Mon Nov 15, 2021 9:49 am
Forum: Vensim
Topic: cost
Replies: 8
Views: 1795

Re: cost

Is my if then else statement wrong? Do you mean to add a unit after each variable in order to check the error?
I have another problem with nesting if then else in the if then else function. What are the rules?
by jie
Mon Nov 15, 2021 9:26 am
Forum: Vensim
Topic: cost
Replies: 8
Views: 1795

Re: cost

I’m very sorry that I did not clarify my question. In fact, my main problem is that the value of the work-in-progress p has a negative number.In my model "work-in-progress p" means “在制品p”.
by jie
Mon Nov 15, 2021 8:25 am
Forum: Vensim
Topic: cost
Replies: 8
Views: 1795

Re: cost

This is my model
by jie
Mon Nov 15, 2021 7:55 am
Forum: Vensim
Topic: cost
Replies: 8
Views: 1795

cost

Hi all I want to ask a question. I built an interruption model, but the cost is shown in the running results. I know this is impossible. After retrospectively, I found that the "work-in-progress p" also has a negative value, but the "work-in-progress p" The formula of p is very s...