Linking Sliders

[drees]

Is it possible to link sliders so that the the sum of the linked sliders does not exceed a set figure - in this case 1? I want to build a simple version of my transport model so that the client can 'play' with shifting the percentages of mode choice - in this case car, public transport and active. In the full model these are all part of closed loops but I want to build a very simple open loop model so that they can play with these percentages directly to test some hypotheses they have. I know ithink/STELLA has this built in functionality and was wondering if there was a way of replicating it in vensim.

Thanks

David

[Administrator]

Do you mean in Vensim sketches? If yes, there is no way to link them (but I'll raise it as an improvement).

I've attached a model that might help. Not quite what you need, you could rename "var 1", "var 2" to "weighting 1" etc. The bar graphs show the relative percentages.

[drees]

As you say not quite what I need but definitely useable. A very clever workaround. I can understand why it is not a builtin function within Vensim as it is a bit sloppy. However, I get enormous mileage out of using very simple, often very simplistic, models to get client engagement and the ability to easily manipulate percentages amongst options while not 'real' can be very useful to get clients engagement with the process.

Thanks for your help

Regards

David