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Using lookups with subscripted variables
Posted: Tue Aug 03, 2004 1:51 pm
by Liz
I am building a model of a workforce, and have used subscripts to allow the use of the same model for 9 different grades and 2 locations (i.e. StaffInPost[grade, location]). This is fine for constant variables such as initial work force size (where I enter the values in the 1, 2, 3, 4; 5, 6, 7, 8; format shown in the help files), but I now want to use a profile of how long staff in each grade/location have been in the workforce in a conveyor delay. Is there a way of setting a lookup graph for each grade/location in a single initial population level variable so that I can feed this into the 'initprofile' element of the conveyor?
Posted: Tue Aug 03, 2004 4:15 pm
by Administrator
The best thing to do would be to enter the data into a CIN file (see the help system under changes file or just CIN).
Basically you can use Vensim's text editor to edit and create lookup tables. You then use this CIN file when running a model instead of holding the data in the model itself.
Hope this makes sense.
Tony.
Posted: Wed Aug 04, 2004 1:23 pm
by Liz
Thanks Tony, will give it a go!
Liz
Posted: Wed Aug 04, 2004 3:03 pm
by Administrator
Another tip, if you click Model->Settings->Info from the Vensim menu, there is a button for Model->CIN, click this and it will give you a template CIN file that you can edit in the Vensim text editor. Select the particular lookup you are interested in and there is a graph button in the text editor.
Hope this helps.
Tony.