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Global variables

Wed, 20/05/2009 - 11:12 — jyearsle

Hi,

Is there a way in Simile to define a global variable (either within a sub-model or across the whole model)?

I could create a variable and put an influence arrow to every variable in the model, but this would end up being a real mess in terms of what the model looked like.  The particular model I'm thinking of at the moment is a boolean network model, where each link has a threshold. That threshold is the same for every link in the network.

So I was just wondering if global variables, so that I could bathe every model component in a set of common, fixed, parameters,  were supported?

 

Thanks

Jon

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Wed, 20/05/2009 - 13:47 — jonathanm

Hi Jon,

To reduce clutter from many influences from one variable, Simile has ghosts, see http://www.simulistics.com/help/diagrams/ghosts.htm (also in the help available from Simile itself).

There is a compromise to make,  the influence the ghosted variable has is less apparent. However, this loss can be offset by reducing clutter that can make a diagram difficult to read, never mind unsightly. When analysing the influence network of a diagram with ghosts Simile has some tools to help to trace influences, http://www.simulistics.com/help/diagrams/tracing.htm.

Regards,

Jonathan

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