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RAMAS - Version Risk Calc 4.0 -Nonparametric Risk Analyses Software
Risk Calc makes new methods available for conducting distribution-free or nonparametric risk analyses. You decide what information or assumptions should be used, and the software calculates bounding estimates of risks. Often these bounds can be shown to be the best possible. Using Risk Calc, you can do quality assurance reviews for probabilistic risk and safety assessments. It supports probability bounds analysis, standard fuzzy arithmetic, and classicalinterval analysis. Its applications are like those of Monte Carlo packages such as @Risk or Crystal Ball, but Risk Calc does not require you to specify precise details of statistical distributions and their dependency relationships when empirical data are lacking.
Without perfect knowledge, we can never be sure about the exact values of numbers used as input. Virtually all real-world calculations harbor some uncertainty. RAMAS Risk Calc 4.0 uses
- traditional methods such as probability theory and interval analysis,
- the newest techniques such as probability bounds analysis,
- fuzzy arithmetic to represent uncertainty.
It provides a convenient environment for computing with numbers in which all uncertainties are carried forward automatically. Risk Calc for Microsoft Windows brings sophisticated methods of uncertainty analysis into reach of anyone who can do arithmetic on a calculator.
RAMAS Risk Calc 4.0 runs under Microsoft Windows and is distributed with demonstration programs that run in DOS boxes. Risk Calc computes with scalars, intervals, fuzzy numbers, probability distributions, and interval bounds on probability distributions. It carries all the uncertainties through calculations automatically. You can enter numbers directly and perform calculations immediately, or you can create files with sequences of calculations, and run these files like programs.
Risk Calc makes new methods available for conducting distribution-free or nonparametric risk analyses using
- Probabilistic arithmetic (30 distributions)
- Probability bounds analysis
- Fuzzy arithmetic
- Naive interval arithmetic
Other features include
- Dimensional checking and units conversions
- Standard arithmetic functions supported for intervals and distributions,
- Accounts for arbitrary correlations,
- Conservative results when dependencies are not known
- Magnitude comparisons between uncertain numbers,
- Envelopes, intersections and stochastic mixtures
- Uncertainty characterization (width, breadth, etc.)
- Pinching functions (middle, spanning, leftside, dispersive, etc.)
- Backcalculation functions (decon, core, etc.)
- Constraint updating
- Histograms that account for sampling uncertainty
- Converts Excel spreadheet to Risk Calc
- Imports data from Excel
- Exports uncertain numbers and their graphs to Excel
- Over 70 example scripts and function libraries
- Recursive syntax wizard
- Variable list editor
- Automatic first and second moment propagation
- Color coded graphical displays
- Easy graphs to capture and print
- Checks for logical variables
- Fuzzy logic consistent with probability theory
- Hybrid methods to combine probabilistic and fuzzy numbers
- Editor for standard risk assessment tables
- Programming (for, if, else, blocking, user-defined functions, comments, arrays, etc.)
- Extensive documentation and help files,
- Demonstration version software
- Compatible with Windows XP and newer.