Search found 29 matches

by sani
Sun Jul 01, 2018 1:36 pm
Forum: Vensim
Topic: remove warning in unit check
Replies: 4
Views: 3648

Re: remove warning in unit check

Thank you.
My problem was solved with your help.
by sani
Sat Jun 30, 2018 11:56 am
Forum: Vensim
Topic: remove warning in unit check
Replies: 4
Views: 3648

Re: remove warning in unit check

Warning: units in equation for - labor index
Lookup - labor lookup table- used with dimensioned argument person

Because of the compatibility of other relevant calculations, i must use dmnl unit
by sani
Sat Jun 30, 2018 11:40 am
Forum: Vensim
Topic: remove warning in unit check
Replies: 4
Views: 3648

remove warning in unit check

Hi
When I check my model, I encountered with one warning in unit check.
how can I remove the warning
I try to remove with suppresses warnings But did not work :?:
by sani
Wed Jun 06, 2018 11:58 am
Forum: Vensim
Topic: error in lookup table output
Replies: 6
Views: 4001

Re: error in lookup table output

I think I do not know one of the main points about the lookup table :cry:
by sani
Wed Jun 06, 2018 11:21 am
Forum: Vensim
Topic: error in lookup table output
Replies: 6
Views: 4001

Re: error in lookup table output

excuse me how i should fix my formula to run my model
i want for example for first year GDP*0.0002 and give my first output in graph?
in my graph: axis are years in the format Hijri Shamsi...and y axis are %GDP which invested on ICT sector
by sani
Wed Jun 06, 2018 8:27 am
Forum: Vensim
Topic: error in lookup table output
Replies: 6
Views: 4001

Re: error in lookup table output

sorry
I forgot.
by sani
Wed Jun 06, 2018 7:44 am
Forum: Vensim
Topic: error in lookup table output
Replies: 6
Views: 4001

error in lookup table output

Hi
I have a problem in running my vensim model.
In my model, the result of the multiplication of the variable level GDP in a lookup table is a constant number.
But I know this amount should change over time!
Where is my model's bug???
Help me please
by sani
Fri Jun 01, 2018 12:29 pm
Forum: Vensim
Topic: regression
Replies: 4
Views: 3102

Re: regression

here is my vensim model
by sani
Fri Jun 01, 2018 12:26 pm
Forum: Vensim
Topic: regression
Replies: 4
Views: 3102

Re: regression

i have a structural equation modeling
i want to use my model numebr in vensim? can i?
the red arrow are my equation relation.
please help me?
I'm so confused
by sani
Fri Jun 01, 2018 11:39 am
Forum: Vensim
Topic: regression
Replies: 4
Views: 3102

regression

Hi I’d like to try to estimate the parameters of the my model from part of my model my strategy is to estimate separately the parameters, using regression and i dont now how i can estimate? I do not know how to enter the numbers I get through SEM in vensim Please send me if you have a training file ...
by sani
Mon Apr 23, 2018 7:01 am
Forum: Vensim
Topic: quastion about Graph
Replies: 2
Views: 2149

Re: quastion about Graph

Thank you.
by sani
Mon Apr 23, 2018 6:12 am
Forum: Vensim
Topic: quastion about Graph
Replies: 2
Views: 2149

quastion about Graph

Hi
In many sample Vensim models, especially in the model guide files, I've seen sample Graphs which running on the same model screen.
How can I use this feature?
by sani
Thu Apr 19, 2018 2:09 pm
Forum: Vensim
Topic: quastion about Limiting Domain
Replies: 2
Views: 2329

quastion about Limiting Domain

Hi
In my vensim model, I have a stock variable called service quantity.I want there is a value number between 0 and 1.
I used min function for this purpose but still, the answer is bigger than one.
Use min and max option in variable information window Did not make a difference.
please guide me.
by sani
Sat Apr 14, 2018 5:17 am
Forum: Vensim
Topic: sensitivity analyse
Replies: 2
Views: 2069

sensitivity analyse

Hi
I'm wondering why my Vensism software does not have sensitivity analyze option(No sensitivity icons, no toolbar)!?
I even re-install the software, but I'm still having problems
I use Vensim 6.4.
Thanks.
by sani
Thu Apr 12, 2018 8:56 am
Forum: Vensim
Topic: lookup table
Replies: 16
Views: 8559

Re: lookup table

Thank you so much.
by sani
Thu Apr 12, 2018 4:33 am
Forum: Vensim
Topic: lookup table
Replies: 16
Views: 8559

Re: lookup table

Despite all the changes and corrections, when I put the actual data about GDP growth along years in the lookup table, it seems that the output is still wrong.
GDP starts from zero point instead of 393.4 billion dollars!!
by sani
Wed Apr 11, 2018 6:11 pm
Forum: Vensim
Topic: lookup table
Replies: 16
Views: 8559

Re: lookup table

Thank you for your all your help.
by sani
Wed Apr 11, 2018 4:50 pm
Forum: Vensim
Topic: lookup table
Replies: 16
Views: 8559

Re: lookup table

Thank you so much for your valuable guides.
by sani
Wed Apr 11, 2018 3:43 pm
Forum: Vensim
Topic: lookup table
Replies: 16
Views: 8559

Re: lookup table

Administrator wrote:Did you also change the time bounds of your model so it runs from 2016 onwards?
excuse me, How should I do this?
by sani
Wed Apr 11, 2018 2:06 pm
Forum: Vensim
Topic: lookup table
Replies: 16
Views: 8559

Re: lookup table

Hello
thanks for your help.
I modify growth rate = f ( time ) and I change units, but I still have a problem!
by sani
Tue Apr 10, 2018 6:02 pm
Forum: Vensim
Topic: lookup table
Replies: 16
Views: 8559

Re: lookup table

Yes x-axis is time and y-axis is GDP growth rate
by sani
Tue Apr 10, 2018 4:08 pm
Forum: Vensim
Topic: lookup table
Replies: 16
Views: 8559

lookup table

hello
please help me
My lookup function f multiplies only one constant in growth rate the variable
by sani
Thu Apr 05, 2018 4:19 am
Forum: Vensim
Topic: error in simulation data
Replies: 7
Views: 4262

Re: error in simulation data

Thanks for your attention.
I fix dimension and remove penetration rate and 100 from equations, but the number of internet site visitors are still fixed in 2200000, and does not increase properly?
Is there a problem with the formula?
by sani
Wed Apr 04, 2018 7:18 pm
Forum: Vensim
Topic: error in simulation data
Replies: 7
Views: 4262

Re: error in simulation data

I did all the hints but the problem has not been fixed yet! :cry: :cry:
by sani
Wed Apr 04, 2018 5:32 pm
Forum: Vensim
Topic: error in simulation data
Replies: 7
Views: 4262

Re: error in simulation data

thank you so much