Simulistics

A condition model element is used to specify whether a submodel, or a potential instance of a multiple-instance submodel, actually exists.

How to add a Condition symbol

The condition symbol only has meaning inside a submodel. Therefore, you should make the submodel first, then add the condition symbol to it. This is not strictly necessary: you can add the condition symbol first, then construct a submodel around it, but it is better practice to construct the submodel first.

The reproduction symbol is used to specify the rate of creation of new instances of a population submodel by each existing instance. It thus differs from the migration symbol, which specifies the total rate of creation of new instances.

The Migration symbol is used to specify the creation of new instances of a population submodel during the course of a simulation. In contrast to the Reproduction symbol, which specifies this in per instance terms (i.e. the creation of new instances per existing member of the population), the Migration symbol determines the total number of new instances that are created.

The Initialisation symbol is used to specify the initial number of individuals in a population submodel.

The mortality symbol is used to specify the conditions under which one instance of a population submodel is destroyed.

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As of Simile version 5.0, glibc version 2.4 is required to run the Linux Simile build available from simulistics.com. (If you have an earlier version we may be able to build Simile for you. Let us know the version of glibc you have and other details of your Linux distribution.)

To find the version of glibc on most systems, including Debian, call the library as a program:

(uiserver)::~ > /lib/libc.so.6
GNU C Library stable release version 2.3.6, by Roland McGrath et al.

On Debian-based systems:

Use undo/redo

When editing a model it can be easy (as is often the case with diagram editors) to make an addition or change you immediately wish you hadn't made. Returning the diagram to how it was before the change manually can be a nuisance involving several mouse manipulations and/or key clicks. Any change can be undone by using the undo button on the toolbar or pressing Ctrl z. You can undo changes incrementally by repeated undo operations and if you change your mind there is a redo button.

This is the main content page for a collection "tips and tricks" for using Simile. Ranging from installation to model editing and model simulation. This collection is of tips that make using Simile easier to use but generally can be done without. This differs from the "How to" pages that give more solid, required information on how to do things using Simile.