RISKview

View and Analyse Your Distributions!

Have you ever been using @RISK and weren't sure which distribution function you should use? Have you ever wanted to represent uncertainty with a distribution you scribbled on a piece of paper? Then RISKview is the tool for you!

RISKview "pops up" over your spreadsheet model!  Click to view larger graphic.

Create the Perfect Distribution!
RISKview is the world's most popular tool for viewing, creating and assessing probabilities graphically. RISKview allows you to preview, edit, and draw probability distribution functions. Available as a stand-alone product, fully integrated with every copy of @RISK 4.5 for Excel, BestFit 4.5, or bundled with the DecisionTools?Suite, the new RISKview 4.5 is one of the most versatile companion programmes on the market! As part of @RISK 4.5, RISKview appears as a "pop-up" distribution viewer window that quickly assigns probabilities to spreadsheet cells. RISKview can also be used to determine probability distributions for models built with RISKOptimizer? or @RISK for Microsoft Project! RISKview is easily launched from these applications with a new icon appearing alongside the Excel or Project toolbars.

RISKview truly shines as a companion to the latest releases of @RISK for Excel, RISKOptimizer, or @RISK for Project. Or use RISKview by itself when working with probability distributions for other purposes! No matter how you use it, RISKview is the most comprehensive probability viewer around.

Preview any of 38 distribution functions and change their parameters on the fly. Click to view larger graphic.

Visualise Your Distributions
RISKview is an interactive distribution viewer where you can instantly view distribution graphs for any of the 38 @RISK distributions. Just choose the distribution you are interested in from the drop-down list of distribution functions. Not sure what a particular distribution looks like? Just select it from the menu and instantly see a graph of the distribution. Or, click a button to bring up the Distribution Palette - a gallery of thumbnail sketches representing all available distribution types. Just click the thumbnail of the distribution you wish to use to see the full graph!

Graphs in RISKview 4.5 are high-resolution and presentation-quality. Furthermore, all graphs may be fully customised by type (density area, cumulative ascending, cumulative descending, etc.), scaling, colours, and more. Plus, graphs may be exported to Excel for further modification in native Excel chart format. All graphs include sliding delimiters as well for quick, accurate comparisons of probabilities.

An Interactive Distribution Viewer
Then type in desired parameters or adjust them with spin buttons, and watch the graph update as you change parameters! Want to quickly see a graph of a Lognormal distribution with mean = 100 and standard deviation = 10? Just type in the parameters in the fields provided. Need to see the same distribution with a standard deviation of 20 or 30? Just type in 20, 30, or use the spin buttons and watch the graph reflect the change. With this versatile product you and your colleagues can view and review the probabilities used in your @RISK, RISKOptimizer or @RISK for Project models. Once you have created the distribution you like, click a button and the currently displayed distribution will be entered into the active Excel spreadsheet cell or current Project field! RISKview makes it easy to pick the right distribution to describe your uncertain values.

Alternate Parameters give you more flexibility when defining your uncertainties.

Alternate Parameters for Greater Flexibility
There may be instances where you wish to use a particular distribution function to describe an uncertain factor, but you don't have enough information to determine the parameters for that distribution. For example, from experience you may know that a normal distribution best describes the net pay of an oil reservoir, but you don't have enough information about the field to know what the mean and standard deviation of the distribution may be. RISKview 4.5 now allows you to enter parameters as percentile values, giving you even greater modelling flexibility. For example, you can use survey or historical data to estimate the 10th and 90th percentiles of a normal distribution instead of guessing at the mean and standard deviation.

To do this, simply select your distribution, then click the new "Alt" button to bring up the alternate parameters dialogue. Enter your percentile values, and RISKview automatically creates a new distribution function for you. You can even use a combination of standard and percentile parameters!

Distributions available in RISKview include:

Beta Beta General Beta-Subjective Binomial Chi-Square Cumulative Discrete Discrete Uniform Error Function Erlang Exponential Extreme Value/Gumbel Gamma

General Geometric Histogram Hypergeometric IntUniform Inverse Gaussian/Wald Logistic Log-Logistic Lognormal Lognormal2 Negative Binomial Normal Pareto

Pareto 2 Pearson V Pearson VI PERT Poisson Rayleigh Student's t Triangular Triangular General Uniform Weibull

All Statistics Included
With RISKview, you get all statistics for every distribution function in a handy spreadsheet-style report to the right of the graph. Minimum, maximum, mean, mode, standard deviations, skewness, kurtosis and all other statistics you would expect are there, and are updated automatically when the graph changes. RISKview gives you complete information to ensure the most accurate probability distribution to fit your situation.

Use RISKview's Distribution Artist to create a picture-perfect distribution curve.  Click to view larger graphic.

Use the Distribution Artist to Draw Your Own
What if you just don't know what function to use, but you can draw a curve which reflects the range and distribution of possible values? With RISKview's Distribution Artist, you get a toolkit for creating your own distributions! Give RISKview a minimum and maximum value, then use the mouse to sketch your curve in between. Stretch the curve up or down at any point when you want to change its shape. A smoothing function helps those shaky hands. Done with your newly created masterpiece? RISKview changes your drawn curve to an @RISK General function which can be entered into the current spreadsheet cell or Project field.

RISKview 4.5 can take your hand-drawn curve one step further. Using technology from Palisade's powerful BestFit 4.5 software, RISKview can calculate the standard distribution type and parameter values that "fit" your curve the best! All you have to do is click the Fit Curve button in the RISKview toolbar and use the resulting distribution function in your model!

Intuitive Interface
RISKview 4.5's Microsoft Office-style interface makes it easy to get up and running quickly. Dialog boxes, menus, toolbars, tables and graphs are all designed to be familiar and easy to understand. Most commands are accessible via toolbar buttons or right-click pop-up menus. You'll find yourself doing most of your work using only the mouse!

Compare distributions using overlays.  Click to view larger graphic.

Compare Distributions Using Overlays
Do you want to see how the range and probabilities of two distribution functions differ? Ever wanted to compare graphs of two different distributions on top of each other? With RISKview 4.5, you can! Using a simple right-click command, it's easy to overlay two distribution graphs on top of each other, and you can compare probabilities using sliding delimiters. Overlay graphs automatically take on parameters within a similar range as the original graph, making comparisons easy. All statistics for both distributions are displayed in the linked statistical report to the right of the graph for easy reference. Want to remove the overlay, or switch back and forth between the two graphs? Simply right-click to perform those functions as well!

Use RISKview 4.5 Fully Integrated with @RISK 4.5
When used with @RISK 4.5 for Excel, RISKview becomes a pop-up distribution viewer easily accessible via a toolbar button or a right mouse click. Pop-up over an Excel cell and graphically assign probability distributions to any value in the formula. As you change parameters, truncate your distribution or name it, watch as RISKview builds your distribution for you. You get the best of both worlds - a complete intuitive graphic assignment of distributions combined with the fully flexible distribution function format of @RISK! Plus, RISKview links directly to distribution functions that are used in your @RISK models, so any time you change your distribution, you can see an updated graph with RISKview.

RISKview Features
Pops up directly over Excel or Project
Use with @RISK, @RISK for Project, RISKOptimizer, or with the DecisionTools Suite
Lets you preview and edit 38 distribution functions
Distribution Palette provides thumbnail sketches of available distributions
Alternate distribution parameters let you enter percentile values for distributions
Interactive distribution viewer displays distribution function graphs at any parameter values
Spin buttons instantly change parameter values and re-graph distributions
Graphs are presentation quality and fully customisable
Graphs may be exported to Excel
Sliding delimiters on all graphs make comparing probabilities easy
Full statistics provided for all distributions
Distribution Artist lets you draw and modify your own distribution curves
Instantly gives you the "best-fitting" standard distribution that matches your hand-drawn curve
Smoothing takes the jags out of your drawn distributions
Drawn or entered distributions can be instantly placed in Excel or Project
Overlay graphs let you graphically compare two different distribution functions
Overlay graphs automatically take on "intelligent" parameters
Tighter integration with @RISK 4.5 builds distribution functions for you
Office-style interface makes RISKview easy to use

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