Exeter Software

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ModelMaker 4 Features

A quick tour of ModelMaker's extensive range of features and functions:

Building your model

Model building couldn't be easier. Simply click on the component you want and add it to your model diagram.

Each component has a different function:
Compartments Represent containers or integrators in your model
Flows Signify transport of a quantity from one compartment to another
Variables Values which are calculated as your model is run, according to an equation
Defined Values Values which are calculated at the start of a run or in response to the actions of an event
Influences Indicate where the value of a component affects the value of another
Delays Delay the value of another component for a defined period of time
DLL Functions Add new functionality - design and integrate your own DLL
Sub-models Create models within models
Lookups Incorporate external numerical data into your model
Events Adjust the values of other components and cater for discontinuous models
Parameters Store constant values in your model
Text Boxes Add informative text or pictures to your model

Running your model

In ModelMaker, you can simulate any situation.

Choose from 5 different integration methods - Runge-Kutta, Mid-Point, Euler, Bulirsch-Stoer and Gear. Gear's method, new in ModelMaker 4, is an appropriate solver for stiff simulations where processes happen on very different time scales.

Key simulation features are:
bulletUser defined or adaptive output points
bulletFixed or variable step length
bulletError scaling
You can use the repeated run facility to run your model many times. This tool provides the ability to analyze:
bulletPeriodic models
bulletStochastic models

Analyzing your model

ModelMaker provides a full range of analysis techniques.


Use ModelMaker's optimization facility to find the best agreement between your model's data and input experimental data. Features include:
bulletMarquardt or Simplex methods of optimization
bulletSimulated annealing and Grid search methods of initial parameter estimation (NEW in ModelMaker 4!)
bulletOrdinary least squares, Weighted least squares and Extended least squares (NEW!) methods of error scaling
bulletComprehensive statistical reporting
Use ModelMaker's Monte Carlo facility (also known as Global sensitivity) to specify model parameters as random distributions. This tool (NEW to ModelMaker 4) allows investigation of the effect of varying parameters on component values. You can:
bulletChoose from 14 distribution types
bulletDisplay your results as a histogram
bulletGenerate a comprehensive statistical report
Other ModelMaker analysis tools include:
bulletMinimization
bulletSensitivity analysis

Reporting your results

Once you have simulated and analyzed your model, you can generate tables of results, graphs and statistics. Features include:
bulletFully customizable graphs
bulletComprehensive statistical output
bulletTabulation of model values
bulletCut and paste tools which allow you to incorporate data, models, graphs etc into other applications

 

 

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e-mail: sales@exetersoftware.com
Phone: 1-631-689-7838, Toll-free within USA: 800-842-5892
FAX: 1-631-689-0103,
47 Route 25A, Suite 2, Setauket, NY 11733-2870 USA
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