Draco
Draco is an econometrics and statistics package written with ease of use in mind. The software offers a variety of regressions for econometric analysis, and data is presented in a familiar, spreadsheet-like interface. Draco features data plotting and manipulation as well. It interoperates with common open source formats, including OpenDocument spreadsheets and Scalable Vector Graphics.
| Tags | Scientific/Engineering Mathematics Office/Business |
|---|---|
| Licenses | GPLv3 |
| Operating Systems | OS Independent |
| Implementation | Java |
Recent releases
- 04 Apr 2009 00:40
Changes: The text editor now iconifies when a file is loaded. Median calculation has been fixed. Skewness and kurtosis calculations are now performed via Apache Commons Math routines. Vectors and matrices in plugins now support division by a scalar. There are minor UI improvements to the embedded text editor.
- 18 Mar 2009 21:48
Changes: This release incorporates a new text editor component for plugin development using RSyntaxTextArea. It replaces the custom nonlinear least squares algorithm with more convergent Apache Commons Math routines. It implements a plugin wizard to aid in plugin development. Java Look and Feel is now user-definable. Help browser (HelpGUI) has been upgraded to better support opening external Web browsers on GNU/Linux and similar systems.
- 09 Dec 2008 00:30
Changes: Unit tests have been added to ensure proper loading/saving of all possible worksheet components. Unexecuted plugins are no longer erroneously written to save files. Probit regressions are now loaded from dave files properly.
- 03 Dec 2008 11:48
Changes: Major outstanding issues discovered during the testing of the first release candidate have been resolved. Specifically, plot rendering has been fixed, and cosmetic changes have been introduced to both histograms and scatter plots. Matrix conditioning issues in weighted least squares have been resolved. Nonlinear least squares regressions now function properly when null data is present. A bug related to saving and reloading of worksheets containing plugins has been fixed.
- 22 Nov 2008 18:41
Changes: Probit Maximum Likelihood Estimator regression has been implemented. A new user preferences panel has been added, allowing for minor user interface changes and the specification of settings for the Draco plugin system. The plugin system has been further enhanced with the introduction of parallel matrix multiply operations for multiprocessor systems. The library used for loading and saving Draco worksheets has been upgraded, providing an order-of-magnitude decrease in file loading times. Minor outstanding bugs have been addressed from version 1.1.
