create groups of municipalities within a process

[Ingrid Schockaert]

Dear all,

The person entity in my model has a field called “res_id” (id of the municipality of residency). There are 308 municipalities. Sometimes I want to regroup some of these municipalities within a process in order to obtain more stable estimates.

I could create a new variable “res_group_id”, but then in all processes this should be updated. This is rather complicated, especially in the context of internal migration. Each time a person moves, his res_id changes and hence also potentially his res_group_id.

Is there a possibility to use a global (or another way) to identify for each consecutive simulation period, the relation “res_id – res_group_id”? Hope my question is a bit clear. 

thank you in advance,

Ingrid

[Gaëtan de Menten]

Hi Ingrid,

 

Sorry for the slow reply. I am very busy on other projects these days. As I said, previously, this will work nicely by using a global array from 0.13 onwards but it probably will not be released in a long time… So your best bet with version 0.12 is either to:

1. Use a global array but in 0.12 you need to change your residency ids so that they start at 0 and increase without gap in numbers.
2. Or you can define a new entity for the place of residency with a group_id field corresponding to res_id2 for that place of residency. Then you can declare a link between the two entities and get at the residency group of a person by using the link. Attached is a modified demo example (using that dataset) demonstrating that. I will send you your .csv file with your actual groups modified to work for this example via private mail.

 

Hope it helps,

Gaëtan

 

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