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Growth II is designed to allow scientists and students, with no mathematical knowledge, to fit a variety of common growth curves to their data. The methods on offer range from the relatively simple and familiar to more complex models such as the general Richards curve and seasonally adjusted von Bertalanffy. The program also offers some graphical methods which have generally been superseded by numerical techniques, but which may still be useful when exploring your data.
Growth II, completed in October 2006, is an upgrade from Simply Growth and includes the following additions and enhancements:
| • | An improved user interface and graphics |
| • | No maximum size for the data set - all arrays are dynamically sized |
| • | Additional new models including a seasonal von Bertalanffy |
| • | Appropriate model statistics to help with choice of method |
A full list of the New Features in Growth II
New Models
| • | Morgan-Mercer-Flodin (MMF) |
| • | Non Linear Seasonally adjusted von Bertalanffy |
| • | Linear Seasonally adjusted von Bertalanffy |
New Appropriate Model Statistics
| • | Akaike Information Criterion (AIC) |
Improved Models
| • | Non Linear Von Bertalanffy |
Improved Graphics
| • | Export Charts as BMP, WMF, EMF, JPEG, PCX, GIF and PDF |
| • | New tools on each graph making publication quality charts easier |
| • | Active clicking on graphs – takes you to the editor for each part of the graph |
| • | Interactive results and Equation – click on a parameter and the corresponding part of the equation will be highlighted |
Improved data entry and editing
| • | Opens Excel (*.xls) files |
New Help
| • | Completely rewritten Help |
| • | Explanations of the models |
| • | Tutorials and worked examples |
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Introduction