Search found 7 matches

by fipac
Thu Oct 13, 2022 7:54 pm
Forum: Vensim
Topic: Use case with GET DIRECT LOOKUP
Replies: 5
Views: 596

Re: Use case with GET DIRECT LOOKUP

Thanks. The idea is to execute the math in the model using data from a given time period in that table (the csv file).
by fipac
Sat Oct 08, 2022 4:02 pm
Forum: Vensim
Topic: Use case with GET DIRECT LOOKUP
Replies: 5
Views: 596

Re: Use case with GET DIRECT LOOKUP

My intention is to map steps in hours to historical data in years-days (time stamps, > 10000 lines in a csv file). I contacted a Vensim distributor who kindly tested this simple model for me and with a non PLE version. Before upgrading I’d like to be sure newer versions of Vensim can handle this sce...
by fipac
Fri Oct 07, 2022 10:53 pm
Forum: Vensim
Topic: Use case with GET DIRECT LOOKUP
Replies: 5
Views: 596

Use case with GET DIRECT LOOKUP

Hi, I’m attaching a simple test model with GET DIRECT LOOKUP. I cannot figure out the kind of results in DataE. For example the table shows a value of 1 instead of 2 for steps 23 to 46. Each step (hour) should be mapped to a calculated timestamp (day in the year), and this gives a corresponding valu...
by fipac
Thu Oct 06, 2022 11:47 am
Forum: System Dynamics Discussion
Topic: Repeating LOOKUP TABLE
Replies: 6
Views: 7062

Re: Repeating LOOKUP TABLE

Any example on how that can be achieved in a non-PLE version?
by fipac
Wed Oct 05, 2022 11:31 pm
Forum: System Dynamics Discussion
Topic: Repeating LOOKUP TABLE
Replies: 6
Views: 7062

Re: Repeating LOOKUP TABLE

Hi, does anyone know if the same as above (lookup using MODULO) can be done by reading the data from a CSV ?
by fipac
Tue Sep 13, 2022 1:00 pm
Forum: Vensim
Topic: Subscripts use case
Replies: 3
Views: 405

Re: Subscripts use case

Thanks, is it a free Vensim version supporting subscripts?
by fipac
Tue Sep 13, 2022 12:23 pm
Forum: Vensim
Topic: Subscripts use case
Replies: 3
Views: 405

Subscripts use case

I'm starting to develop a model representing growth of pasture for more than 30 paddocks in a farm with a rotational grazing scheme (1 paddock grazed -consumed- at a time). My first guess is that I'll need subscripts. But if I understand correctly, only up to 8 subscripts are supported by Vensim. Do...