Vensim 6.0b is now available for download or purchase in the Vensim store. This is a minor release, adding CSV import/export functionality and containing improvements to the treatment of data keywords and WITH LOOKUP variables, Mac bitmap display, and other bug fixes.http://vensim.com/download/http://vensim.com/store/
Version 6.0 introduced a new look and new features, while preserving language and file compatibility with older releases.
- Interface Changes
- A new Equation Editor layout
- Improved Toolbars and Cursors
- Optimization Features
- Stochastic optimization : optimize over an envelope of Monte Carlo simulations
- Discrete constraints on optimization parameters, so you don’t waste time determining whether to build 2.6 or 2.7 factories.
- Extended payoffs with non-Gaussian errors, logarithms, and mixed calibration/policy variables.
- Markov chain Monte Carlo & simulated annealing
- Extended payoff report information with MAPE and Theil statistics
for the full release notes, with a video introduction at http://vensim.com/video.html
You can upgrade to the latest version of Vensim easily – just follow the Upgrade link at http://vensim.com/download/
and enter your license code. Can’t find it? No problem – contact us for help.
If you don't have a recent version of Vensim, there are some interesting new features, including:
- Significant upgrades to the Help system, including improved indexing and nearly 100 sample models illustrating the use of almost every built-in function
- Native Mac support (licenses are portable across platforms)
- GET DIRECT functions that can access spreadsheets and other delimited data files, like the GET XLS functions without the overhead of launching Excel.
- The option of observing integer constraints in the ALLOCATE AVAILABLE function
- great for managing allocation of discrete items like customers or aircraft.
- Enhancements to the document tool and SyntheSim functionality with lookups in large models
- On-the-fly configuration of subscripts (arrays) with the GET DIRECT SUBSCRIPTS or GET ODBC SUBSCRIPTS functions
- great for matching model detail to your data.
- :EXCEPT: statements that let you handle exceptions to subscripted equations more easily.