Current set-up



Although I tend to avoid doing this, I once again saved a model with the current set-up.  If I do that and want to open the model again, it does open the model diagram, it also opens the interface, but then it opens the welcome screen and goes into what looks like an infinite loop.  At some point it opens the welcome screen and if I click that away, it askes me if I want to close the program or wait for the process to end (it never does, so I tend to close the program)

Conditionally created lists and arrays.

I'm currently creatinfg a model that conditional constructs a large Hexagon grid.  The smallest grid contains 49601 hexagons and it takes about 60 - 75 minutes to compile.  Is there a way to capture this list so that it doesn't have to be compiles each time the model needs to be opened? Will snapshot do the trick?

Simile v5.94 released

We have released a new version of Simile in order to bring out a large number of very minor improvements and to ensure that the Evaluation Edition has a decent amount of time to run. The highlights are:

  • Improved handling of syntax errors in user-defined function files
  • Better management of favourite file paths
  • Time series parameters can be updated at intervals of any time unit

Current v5.x customers, please download and install this whenever convenient.


Increasing the length of a number fron 10 to 16

I have created a matix of hexigons or Tampa that numbers in the millions.  Each has an identifying number defined by a distance from a center point.  for example 26733.8887760666.  If not a neighbor the number would be 26733.8887761072.  They differ in the last five digets.  Is there some way to get around this.  Because Simile doesn't upload the last five digets I get 12 instead of 6 neighbors.

Attempting to set up login by reference to social networing sites

 I am at present attempting to configure the web site to accept login (and registration) via various social networking sites to save users form having yet another set of login  credentials for this site. 

So currently glyphs prompting login via Google Facebook etc may well appaear but not work until I have the configuration correct.

Model catalogue (repository ) revamp

A security update of the website software (Drupal) has left our ad-hoc model catalogue code broken. (The code originates from before our use of Drupal to manage the rest of the site.)

ModelMaker to Simile conversion basic elements

I have been working on converting ModelMaker (  version 4 models (*.mod) to Simile version 5.9.

ModelMaker compartments, variables, defines and parameters now seem to be handled. Events and tables are not yet handled.

First meeting of Steemi,the Student Ecological and Environmental Modelling Initiative on Tuesday 7th February 2012

The first meeting of STEEMI, the Student Ecological and Environmental Modelling Initiative took place on Tuesday 7th February 2012.  I met up with four students studying for a BSc in Ecological Science at the University of Edinburgh, and we discussed the value of models within ecology, and the potential to improve the practice of modelling.

Ecological and environmental models are a vital tool for capturing our understanding of complex human/nature systems, and for exploring possible futures in the face of unprecedented global challenges.

Unable to compile and cannot reopen the file.

I'm using 64bit5.9 - I had reached a point in my modeling effort where I had wanted to compile the model.  I hade been working on it for a couple of days and had saved it several times including today. When I hit ht ecompile button a messages came up after a bit saying that the prolog was overextended or something of that nature.  Before I could get more details the screen went blank.  When I try to reopen the file sends a message that it cannot find some script and when i hit OK it trys to convert the 64bit 5.9 file from 5.0. Like it thinks it is 5.0.

R project plugin for model execution released

It is now possible to load, parameterize, execute and interrogate a previously saved Simile model within an R language script.
The interface package for doing so is available via The Comprehensive R Archive Network ( by the name Simile. Current version is 1.1. It is compatible with all Simile platforms, and requires Simile version 5.8 or later.

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