How can I work with vectors or arrays in Vensim?

[slanefic]

Hi, I want to work with different values for every month in the flow into the level variable.

Can I use vectors or arrays??
How can I do it?

thank you very much

[LAUJJL]

Hi

Here is joined an example
Regards.
J.J. Laublé

[bob@vensim.com]

JJ provided an example that allows you to switch between different constants - however, from your query you might be after something simpler. Every flow in Vensim changes over time. The equation

population=INTEG(births,100)
births=population*.05

means that population starts at 100, and births at 5. The next period population will be 105 and births 5.25 - then 110.25/5.5 and so on. Everything is always changing - time is effectively an implicit subscript in all models.

[slanefic]

I can´t open the model, I have Vensim Ple (students version).

The error says "Model has subscripts or uses an unsupported function. Not opened "

What can I do?
Thank you very much

[LAUJJL]

Hi

Arrays or vectors are not implemented in Vensim PLE.
You must then use Bob's solution where you make the rate dependant from other auxiliaries and will change with the time.
Regards.
J.J. Laublé